Conclusion
1195Ends by stressing the field's early-stage character and expected rapid development.
Relevance: Core · 1195 · Conclusion
Review · secondary evidenceReview
History of Organometallic Polymers
John E. Sheats · Journal of Macromolecular Science-Chemistry · 1981
8review sections
11material families
16review claims
22secondary benchmarks
37cited studies
8research gaps
Review scope
Summarise the early development of organometallic polymers, focusing on material classes, synthesis concepts, transport-relevant mixed-valence and one-dimensional conductors, and prospective applications.
- Coverage
- 1955–1979
- Category
- Core Transport Physics
- Material scope
- Vinylic organotransition-metal polymers and metallocenylene polymers · Trialkyltin acrylates and organometallic condensation polymers · Polyphosphazenes and coordination polymers · One-dimensional electrically conducting polymers including sulfur nitride, stacked phthalocyanines, tetracyanoplatinates, polyacetylene and polyphenylene
- Transport scope
- Mixed-valence hopping in ferrocenyl and phthalocyanine polymers · One-dimensional anisotropic conduction in chain or stacked conductors · Chemical oxidation, intercalation and dopant-controlled conductivity · Limitations from morphology, alignment, conjugation and metal-site spacing
- Application scope
- Semiconductors and metallic conductors · Thermally stable materials, elastomers, coatings and ablative structures · Antifouling paints, flame retardants, biomedical release agents and printed-circuit materials
- Explicit exclusions
- Full experimental recipes and exhaustive monomer catalogues · Primary-data extraction beyond selected secondary benchmarks · Detailed device physics beyond early conductivity and application context
- Source
- 1173 · Abstract
- Evidence role
- Context, taxonomy and secondary benchmarking
Section map
The review’s argument is preserved as a navigable set of section summaries.
Condensation Polymers
1182-1184Presents interfacial synthesis of organometallic condensation polymers and Table 4's Lewis acid/base component taxonomy.
Relevance: Supporting · 1183 · Synthesis by Interfacial Techniques · Table 4
Coordination Polymers
1187-1191Organises coordination polymers by bis-chelating agents, bridging ligands, complex monomers and metal incorporation into films.
Relevance: Supporting · 1188 · Coordination Polymers
Abstract and Introduction
1173-1174Frames organometallic polymers as a young field organised into six major material areas, with transport-relevant examples in mixed-valence and one-dimensional conductors.
Relevance: Core · 1173 · Abstract
One-Dimensional Electrically Conducting Polymers
1191-1195Treats sulfur nitride, stacked phthalocyanines, tetracyanoplatinates, polyacetylene and polyphenylene as early low-dimensional conductors.
Relevance: Core · 1191 · One-Dimensional Electrically Conducting Polymers
Organotransition Metal Polymers
1174-1181Reviews vinylferrocene-derived polymers, monomer tables, copolymerisation, metallocenylene methylene polymers and polyferrocenylene mixed-valence concepts.
Relevance: Core · 1174 · Organotransition Metal Polymers · Table 1
Polyphosphazenes
1184-1187Summarises monomer purification, halogen replacement, substituent effects and applications of polyphosphazenes as elastomers, flame retardants and biomedical materials.
Relevance: Supporting · 1186 · Properties and Applications of Polyphosphazenes
Polymerization of Trialkyltin Acrylates
1181-1182Covers radical or anionic polymerisation and cross-linking of tin acrylate polymers as antifouling coatings rather than transport materials.
Relevance: Supporting · 1181 · Polymerization of Trialkyltin Acrylates
Taxonomies
Classification systems are attributed to this review and are not treated as a global material registry.
Condensation Polymer Building BlocksAuthor-proposed
Lewis acid/base components for organometallic condensation polymers
Table 4 frames condensation polymers as combinations of metal-containing Lewis acids and difunctional Lewis bases, with either partner capable of containing a metal.
Categories: Lewis acids containing Group IVA, IVB or VA metals · Lewis bases such as diamines, dithiols, dicarboxylates and dioximes · Lewis bases containing metallocenes
1183 · Synthesis by Interfacial Techniques · Table 4
Coordination-Polymer Construction RouteAuthor-proposed
Three approaches to coordination polymers
The coordination-polymer section distinguishes ligand design routes and cross-linkable film routes, useful for separating backbone coordination from metal-containing organic films.
Categories: Polymers from bis-chelating agents · Bridging ligands · Polymers from complex monomers · Incorporation of metals into polymer films
1188 · Coordination Polymers
Conduction Pathway And DimensionalityAuthor-proposed
Early one-dimensional conductor families
The transport section groups systems where high conductivity is associated with chain or stack directionality, partial oxidation or dopant/intercalant chemistry.
Categories: Sulfur nitride chains · Stacked phthalocyanine polymers · Tetracyanoplatinate stacks · Doped polyacetylene · Doped polyphenylene
1191 · One-Dimensional Electrically Conducting Polymers
Material Family And Historical Research CommunityAuthor-proposed
Six-area organisation of organometallic polymers
The review's top-level structure divides the field into six families, separating structural/synthetic organometallic polymers from transport-focused conducting systems.
Categories: Organotransition metal polymers · Condensation polymers · Organotin acrylates · Polyphosphazenes · Coordination polymers · One-dimensional electrically conductive polymers
1173 · Introduction
Metallocene/Arene/Acrylate Monomer ArchitectureAuthor-proposed
Vinylic organotransition-metal monomer classes
Table 1 groups vinylic organotransition-metal monomers by the type of organometallic unit attached to the polymerisable vinyl, acrylate or methacrylate group.
Categories: Vinyl metallocenes · Vinyl cyclopentadiene and arene complexes · Acrylates and methacrylates
1175 · Vinylic Polymers · Table 1
Material families
Review-defined families retain their representative materials and conduction descriptions.
Organometallic condensation polymers
Condensation Polymer Chains Or NetworksPolymers formed by reactions of metal-containing Lewis acids with difunctional Lewis bases, often through interfacial polymerisation.
Conduction: The section emphasises synthesis, solubility and thermal stability more than electronic conduction.
Representative materials: Group IVB titanocene polyethers · Titanocene dicarboxylate polymers · Group IVA condensation polymers
Nodes / linkers: Ti · Zr · Hf · Si · Ge · Sn · Sb · Pt · Diamines · Dihydrazides · Dithiols · Dicarboxylates · Dioximes
1183 · Synthesis by Interfacial Techniques · Table 4
Coordination polymers
Coordination Chains, Networks Or Cross-Linked FilmsPolymeric coordination complexes made from chelating agents, bridging ligands, functionalised metal complexes or metal incorporation during film formation.
Conduction: Some films were proposed as conductors or semiconductors, but many early polymeric complexes were brittle, insoluble and limited by organic link strength.
Representative materials: Bis-chelate polymers · Polymeric metal phosphinates · Metal-containing cross-linked films
Nodes / linkers: Be · Mg · Cr · Ni · Co · Cu · Zn · Cd · Pt · Beta-diketones · Dioximes · Phosphinates · Schiff-base films
1188 · Coordination Polymers
Metallocenylene and polyferrocenylene polymers
Linear Organometallic Backbone PolymerBackbone polymers linking metallocene units, including 1,1'-polyferrocenylene and mixed-metal metallocenylene concepts.
Conduction: Partial oxidation is expected to generate mixed-valence conjugated polymers, but ferrocenylene units are apparently not coplanar and extensive ring conjugation is limited.
Representative materials: 1,1'-polyferrocenylene · Polyruthenocenylene · Ferrocene-arylene polymers
Nodes / linkers: Fe · Ru · Os · Metallocenylene linkages · Aryl linkages
1181 · Properties of Polyferrocenylene
Trialkyltin acrylate and methacrylate polymers
Organic Polymer With Organotin Side Groups Or Cross-Linked Coating NetworkPolymers and cross-linked films formed from R3Sn acrylate or methacrylate monomers, mainly reviewed for antifouling coating applications.
Conduction: Not a central electronic-transport family in this review.
Representative materials: Trialkyltin acrylate polymers · Trialkyltin methacrylate polymers · Glycidyl acrylate copolymers
Nodes / linkers: Sn · Acrylates · Methacrylates · Epoxide cross-links
1182 · Polymerization of Trialkyltin Acrylates
Doped polyacetylene
Conjugated Polymer Fibril Films With Potential Alignment AnisotropyCis or trans (CH)x films whose conductivity is dramatically increased by partial oxidation or alkali-metal reduction.
Conduction: Pure material is insulating; p-type and n-type doping produce conducting films whose performance is expected to improve with alignment.
Representative materials: cis polyacetylene · trans polyacetylene · CH(AsF5)0.10 · Li0.30CH
Nodes / linkers: None in backbone · Li as dopant · Conjugated hydrocarbon backbone · Oxidising dopants · Alkali-metal dopants
1194 · Polyacetylene
Doped polyphenylene
Conjugated Organic PolymerPolyphenylene materials doped with AsF5 or alkali metals to form air- and moisture-stable conductive polymers.
Conduction: Doped polyphenylene is less conductive than the best doped polyacetylene but is reviewed as more resistant to air and moisture.
Representative materials: C6H4(AsF5)0.42 · Alkali-metal-doped polyphenylene
Nodes / linkers: None in backbone · Alkali metals as dopants · Phenylene units · Oxidising dopants · Alkali-metal dopants
1195 · Polyphenylene
Polyphosphazenes
Flexible Inorganic Polymer ChainInorganic-backbone polymers based on PN chains whose properties are tuned by replacing hydrolysable chlorine with alkoxy, fluoro, amino or amino-acid substituents.
Conduction: Reviewed mainly for elastomeric, flame-retardant and biomedical properties rather than electronic transport.
Representative materials: Alkoxyphosphazenes · Fluorophosphazenes · Amino polyphosphazenes
Nodes / linkers: None intrinsic to PN backbone · Pt complexes as bound/released cargo · PN backbone · Alkoxy substituents · Amino substituents
1186 · Properties and Applications of Polyphosphazenes
Stacked phthalocyanine polymers
Stacked One-Dimensional Columnar ConductorFace-to-face stacked silicon, germanium or tin phthalocyanine polymers that form mixed-valence cations on iodine oxidation.
Conduction: Transport is associated with face-to-face stacking and mixed-valence oxidation; larger spacing in the Sn polymer is linked to lower conductivity.
Representative materials: [SiPcOI0.40]n · [GePcOI2]n · [SnPcOI5.6]n
Nodes / linkers: Si · Ge · Sn · Phthalocyanine macrocycles · Oxo bridges · Iodide intercalants
1192 · Stacked Phthalocyanine Polymers · Scheme 21
Poly(sulfur nitride)
One-Dimensional Chain ConductorZig-zag S-N chain polymer, (SN)x, forming lustrous brittle metallic crystals with strong conductivity anisotropy.
Conduction: Mixed-valence S-N chains conduct primarily along the chain axis; bromine oxidation/intercalation increases conductivity while retaining one-dimensional anisotropy.
Representative materials: (SN)x · SNBr0.4
Nodes / linkers: None · Sulfur-nitrogen chains · Bromide intercalation
1192 · Sulfur Nitride
Partially oxidised tetracyanoplatinate complexes
One-Dimensional StackStacked Pt(CN)4 units with counter-anions in channels, acting as one-dimensional conductors after partial oxidation.
Conduction: Conductivity arises along stacked Pt(CN)4 units with staggered cyanide groups and channel anions.
Representative materials: Rb3Pt(CN)4(SO4-HSO4)0.49.H2O
Nodes / linkers: Pt · Cyanide ligands · Anion channels
1193 · Tetracyanoplatinate Complexes
Vinylic organotransition-metal polymers
Pendant Organometallic Groups On Primarily Organic Polymer ChainsPolymers formed from vinylferrocene and related vinylic metallocene, arene-complex, acrylate and methacrylate monomers.
Conduction: Neutral polyvinylferrocene is insulating, while partial oxidation creates mixed-valence ferrocenyl/ferricinium sites that support hopping-type semiconductivity.
Representative materials: Polyvinylferrocene · Vinylruthenocene polymers · Ferrocenyl acrylate polymers
Nodes / linkers: Fe · Ru · Cr · Co · Pd · Vinyl metallocenes · Acrylates · Methacrylates · Arene complexes
1177 · Vinylic Polymers
Synthesis strategies
Review-level synthesis principles remain separate from primary-study recipes.
Interfacial polymerisation of organometallic condensation polymers
Metal-containing Lewis acids and difunctional Lewis bases are reacted across immiscible phases to avoid cyclisation and low-molecular-weight oligomers.
Claimed effects: Nonequilibrium interfacial formation can produce polymers when homogeneous solution reactions favour cyclisation or degradation.
Controlling variables: Reagent concentration · Solvent pair · Stirring rate · Reaction time · Temperature · Hydrolysis sensitivity
Representative materials: Group IVA condensation polymers · Titanocene polyethers · Titanocene dicarboxylate polymers
Caveat: Properties are highly dependent on process variables, and prolonged stirring can degrade the product.
1183 · Synthesis by Interfacial Techniques
Partial oxidation to create mixed-valence conductors
Ferrocenyl polymers, sulfur nitride, phthalocyanine stacks and conjugated polymers are oxidised or intercalated to generate carriers and mixed-valence states.
Claimed effects: Partial oxidation can transform insulating or weakly conducting polymers into semiconductors or metallic conductors.
Controlling variables: Oxidant or dopant identity · Oxidation level · Intercalant placement · Stacking or chain alignment · Metal-site spacing
Representative materials: Oxidised polyvinylferrocene · SNBr0.4 · Iodine-oxidised phthalocyanine stacks · AsF5-doped polyacetylene
Caveat: Conductivity remains strongly dependent on structural anisotropy, alignment, inter-unit distance and dopant chemistry.
1192 · Sulfur Nitride
Ziegler-Natta polyacetylene formation followed by p- or n-type doping
Acetylene polymerisation gives cis or trans films, and chemical oxidation or alkali-metal reduction generates conducting p-type or n-type materials.
Claimed effects: The review presents doping as the route that changes polyacetylene from an insulator to a high-conductivity lightweight flexible film.
Controlling variables: Polymerisation temperature · Solvent · Dopant identity · Oxidation level · Film alignment
Representative materials: cis polyacetylene · trans polyacetylene · CH(AsF5)0.10 · Li0.30CH
Caveat: Fully aligned material had not yet been prepared, limiting anisotropic conductivity realisation.
1194 · Polyacetylene
Polyphosphazene halogen substitution
Polyphosphonitrilic chloride is made tractable by careful monomer purification and substitution of hydrolysable chlorine atoms with alkoxides, amines or fluorinated intermediates.
Claimed effects: Substitution controls flexibility, hydrophobicity, flame resistance, biodegradability and biomedical compatibility.
Controlling variables: Monomer purity · Heating temperature · Heating duration · Substituent identity · Fluoro intermediate route
Representative materials: Alkoxyphosphazenes · Polyfluorophosphazenes · Amino polyphosphazenes
Caveat: Direct alkyl or aryl substitution caused chain cleavage, and substituted trimer polymerisation attempts were unsuccessful in the reviewed period.
1186 · Polyphosphazenes · Scheme 14
Face-to-face stacking of phthalocyanine units
Dehydration of silicon, germanium and tin phthalocyanines produces stacks that are then oxidised to mixed-valence polymeric cations.
Claimed effects: Stacking is used to overcome poor electron transfer between isolated phthalocyanine units.
Controlling variables: Central element · Interplanar spacing · Iodine oxidation · Crystal quality
Representative materials: [SiPcOI0.40]n · [GePcOI2]n · [SnPcOI5.6]n
Caveat: The review states perfect small crystals should have much higher conductivity, indicating the reported values were not yet intrinsic maxima.
1192 · Stacked Phthalocyanine Polymers · Scheme 21
Cationic, radical and copolymerisation of vinylic organometallic monomers
Vinylferrocene and related monomers undergo cationic or radical polymerisation, while copolymerisation with organic monomers improves mechanical properties.
Claimed effects: Cationic and radical routes are possible for vinylferrocene-like monomers, but steric bulk and electron transfer can limit molecular weight and conductivity.
Controlling variables: Initiator type · Monomer electronic density · Metal-centre oxidation susceptibility · Comonomer identity · Solvent polarity
Representative materials: Polyvinylferrocene · Vinylic organometallic-styrene copolymers · Ferrocenyl acrylate polymers
Caveat: Copolymerisation improves films at the cost of reduced metal content, thermal stability and mixed-valence conductivity.
1177 · Vinylic Polymers · Table 3
Review claims
These are the review authors’ synthesis, not newly measured results.
Author InterpretationHigh supportCaveat
Early polymeric coordination complexes were limited by brittleness, insolubility, and the fact that organic spacers could cap mechanical strength at the organic-link level.
Evidence basis: multi_reference
Caveat: This predates modern crystalline conductive coordination polymers and should be used as historical context only.
1188 · Coordination Polymers
Author InterpretationHigh supportStructure Property Link
Copolymers of vinylic organometallic monomers improve mechanical properties but reduce metal content, thermal stability and electrical conductivity.
Evidence basis: multi_reference
Caveat: The review does not provide a universal quantitative trade-off across all comonomers.
1177 · Vinylic Polymers · Table 3
Consensus SummaryMedium supportCaveat
Polymerisation of monomers containing vinyl groups directly bound to transition metals had not been accomplished in the review's coverage period.
Evidence basis: review_reasoning
Caveat: The statement is time-bounded to the review's 1981 literature horizon.
1177 · Monomers with Vinyl-Metal Bonds
Author InterpretationHigh supportHistorical Development
Organometallic polymer research was still at an early stage by 1981, despite rapid activity during the preceding decade.
Evidence basis: multi_reference
Caveat: The review is historical and forward-looking, not a systematic meta-analysis.
1173 · Introduction
SpeculativeLow supportOther
The review presents doped polyphenylene complexes as candidates for the first organic superconductor if superconductivity can be developed at elevated temperatures.
Evidence basis: review_reasoning
Caveat: This is explicitly forward-looking speculation from 1981, not evidence of superconductivity.
1195 · Polyphenylene
Consensus SummaryHigh supportSynthesis Strategy
Interfacial polymerisation is presented as a way to avoid low-molecular-weight oligomers formed by cyclisation or degradation in homogeneous solution.
Evidence basis: single_reference
Caveat: The review emphasises process sensitivity, so this should not be treated as a universal yield guarantee.
1183 · Synthesis by Interfacial Techniques
DescriptiveMedium supportApplication Relevance
Polymeric metal phosphinates are reviewed as flexible film-forming coordination polymers with proposed uses in greases, antistatic agents and corrosion-resistant coatings.
Evidence basis: multi_reference
Caveat: Applications are proposed rather than demonstrated in deployed devices.
1190 · Bridging Ligands
Author InterpretationMedium supportStructure Property Link
In stacked phthalocyanine polymers, conductivity is linked to face-to-face stacking distance; the Sn polymer is less conductive because its phthalocyanine units are too far apart.
Evidence basis: multi_reference
Caveat: The review predicts better conductivity for perfect small crystals, so reported values are not final intrinsic limits.
1192 · Stacked Phthalocyanine Polymers
Consensus SummaryHigh supportTransport Mechanism
Polyacetylene demonstrates dopant-controlled p-type and n-type conductivity, but film alignment remained a limiting morphology challenge.
Evidence basis: multi_reference
Caveat: The review notes that fully aligned films had not yet been prepared.
1194 · Polyacetylene
Author InterpretationMedium supportStructure Property Link
Linear polyferrocenylene does not show extensive conjugation between rings, apparently because ferrocenylene units are not coplanar.
Evidence basis: multi_reference
Caveat: The conclusion is based on spectroscopy trends reported in the review, not on a directly quoted band-transport measurement.
1181 · Properties of Polyferrocenylene
Author InterpretationMedium supportMaterial Comparison
Doped polyphenylene is reviewed as less air- and moisture-sensitive than polyacetylene derivatives, with lower reported conductivity but better structural and thermal appeal.
Evidence basis: single_reference
Caveat: The review says investigations were still early and no immediate applications had been found.
1195 · Polyphenylene
Consensus SummaryHigh supportStructure Property Link
Polyphosphazene properties are highly dependent on substituent identity, enabling elastomeric, hydrophobic, flame-retardant, biodegradable and biomedical behaviours.
Evidence basis: multi_reference
Caveat: Transport relevance is indirect; this is mainly a structure-property and applications claim.
1186 · Properties and Applications of Polyphosphazenes
Author InterpretationMedium supportTransport Mechanism
Partial oxidation of polyvinylferrocene creates a mixed-valence ferrocene-ferricinium polymer, interpreted as supporting electron hopping between ferrocenyl groups.
Evidence basis: review_reasoning
Caveat: The hopping interpretation is presented by the review; primary transport measurements should be checked before using it quantitatively.
1177 · Vinylic Polymers · Scheme 4
Author InterpretationHigh supportTransport Mechanism
Brominated sulfur nitride is presented as a true one-dimensional conductor because axial conductivity greatly exceeds perpendicular conductivity.
Evidence basis: multi_reference
Caveat: The review's conclusion depends on aligned/fibrous crystal morphology and anisotropic measurement geometry.
1192 · Sulfur Nitride
Author InterpretationMedium supportMaterial Comparison
Group IVB condensation polymers, especially Ti examples, are highlighted for unusual thermal stability, with stability trend Ti greater than Zr greater than Hf.
Evidence basis: single_reference
Caveat: Solubility limitations made molecular-weight measurement difficult.
1184 · Condensation Polymers with Group IVB Elements
Consensus SummaryMedium supportStructure Property Link
Vinylferrocene-type monomers support cationic and radical polymerisation, but not anionic polymerisation, because electron-rich vinyl groups and metal-centre oxidation shape reactivity.
Evidence basis: multi_reference
Caveat: The review summarises earlier organometallic reactivity rather than deriving the mechanism directly.
1174 · Vinylic Polymers
Secondary benchmarks
Every row remains visibly secondary and links to a primary dossier only where the mapping is verified.
| Material | Property | Reported value | Context and quality | Primary evidence | Review source |
|---|---|---|---|---|---|
| Secondarycis [CH(AsF5)0.10]x | Conductivity | 1.2 x 10^3 (ohm cm)^-1 | Best cationic conductor; AsF5-doped cis polyacetylene Text · Exact Reported | No verified corpus mapping | 1194 · Polyacetylene · Scheme 23 |
| SecondaryPolymeric metal phosphinates | Molecular weight | up to 1.5 x 10^5 | Soluble, flexible film-forming bridging-ligand polymers Text · Rounded Reported | No verified corpus mapping | 1190 · Bridging Ligands |
| SecondaryCr-containing polymeric metal phosphinates | Thermal stability | up to 400 deg C | Best pale green flexible film-forming phosphinate materials Text · Rounded Reported | No verified corpus mapping | 1190 · Bridging Ligands |
| SecondaryLinear polymers from monomers 12-15 | Number-average molecular weight | 1-7 x 10^5 | Anionic polymerisation initiated by LiAlH4 Text · Range | No verified corpus mapping | 1177 · Vinylic Polymers |
| Secondary[GePcOI2]n | Conductivity | 1 x 10^-1 (ohm cm)^-1 | Iodine-oxidised stacked phthalocyanine polymer Text · Exact Reported | No verified corpus mapping | 1192 · Stacked Phthalocyanine Polymers · Scheme 21 |
| Secondary(Li0.30CH)x | Conductivity | 2.0 x 10^2 (ohm cm)^-1 | Best anionic conductor from alkali-metal reaction Text · Exact Reported | No verified corpus mapping | 1194 · Polyacetylene · Scheme 24 |
| SecondarySemiconducting polymer from monomer 3 | Conductivity | 10^-7 ohm^-1 cm^-1 | Similar semiconducting polymer after oxidation Text · Exact Reported | No verified corpus mapping | 1177 · Vinylic Polymers |
| SecondarySemiconducting polymer from monomer 5 | Conductivity | 10^-3 ohm^-1 cm^-1 | Similar semiconducting polymer after oxidation Text · Exact Reported | No verified corpus mapping | 1177 · Vinylic Polymers |
| SecondaryPure polyacetylene | Conductivity | 10^-14 (ohm cm)^-1 | Pure cis or trans material Text · Exact Reported | No verified corpus mapping | 1194 · Polyacetylene |
| SecondaryAlkali-metal-doped polyphenylene | Conductivity | up to 7 (ohm cm)^-1 | Alkali-metal doping Text · Rounded Reported | No verified corpus mapping | 1195 · Polyphenylene |
| SecondaryC6H4(AsF5)0.42 | Conductivity | 460 (ohm cm)^-1 | AsF5-doped polyphenylene Text · Exact Reported | No verified corpus mapping | 1195 · Polyphenylene |
| SecondaryPolyvinylferrocene | Conductivity | 10^-14 ohm^-1 cm^-1 | Neutral polymer; review describes it as an insulator Text · Exact Reported | No verified corpus mapping | 1177 · Vinylic Polymers |
| SecondaryPartially oxidised polyvinylferrocene | Conductivity | 10^-8 ohm^-1 cm^-1 | Partially oxidised by Ag+, benzoquinone, or DDQ Text · Exact Reported | No verified corpus mapping | 1177 · Vinylic Polymers · Scheme 4 |
| Secondary[SiPcOI0.40]n | Conductivity | up to 2 x 10^-1 (ohm cm)^-1 | Iodine-oxidised stacked phthalocyanine polymer Text · Exact Reported | No verified corpus mapping | 1192 · Stacked Phthalocyanine Polymers · Scheme 21 |
| SecondaryAligned crystals of (SN)x | Axial conductivity | 0.01-3.7 x 10^3 (ohm cm)^-1 | Along chain axis at room temperature Text · Range | No verified corpus mapping | 1192 · Sulfur Nitride |
| Secondary[SnPcOI5.6]n | Conductivity | 2 x 10^-4 (ohm cm)^-1 | Iodine-oxidised stacked phthalocyanine polymer Text · Exact Reported | No verified corpus mapping | 1192 · Stacked Phthalocyanine Polymers · Scheme 21 |
| SecondaryPoly(sulfur nitride), (SN)x | Superconducting transition temperature | 0.3 K | At low temperature Text · Exact Reported | No verified corpus mapping | 1192 · Sulfur Nitride |
| SecondarySNBr0.4 | Perpendicular conductivity | 8 (ohm cm)^-1 | Conductivity perpendicular to chain axis Text · Exact Reported | No verified corpus mapping | 1192 · Sulfur Nitride |
| SecondarySNBr0.4 | Maximum conductivity | 9.4 x 10^4 (ohm cm)^-1 | Bromine-vapour oxidised/intercalated material Text · Exact Reported | No verified corpus mapping | 1192 · Sulfur Nitride |
| SecondaryStacked tetracyanoplatinate complex | Conductivity | above 1 (ohm cm)^-1 | Partially oxidised stacked Pt(CN)4 units Text · Approximate | No verified corpus mapping | 1193 · Tetracyanoplatinate Complexes |
| SecondaryGroup IVB Ti condensation polymer | Weight loss at 800 deg C | 30% weight loss at 800 deg C | Thermal degradation under nitrogen; degradation begins at 300-350 deg C Text · Exact Reported | No verified corpus mapping | 1184 · Condensation Polymers with Group IVB Elements |
| SecondaryCopolymers of vinylic organometallic monomers | Glass transition temperature | 50-150 deg C | Typical range for copolymers of monomers 1-20 Text · Range | No verified corpus mapping | 1177 · Vinylic Polymers · Table 3 |
Research gaps
Open questions are presented as review-author priorities, not conclusions from the primary database.
Antifouling coating environmental safety
HighTin-containing paints needed formulations that prevent barnacle growth without releasing toxic material at hazardous levels for other marine life.
Proposed direction: Optimise release rate, formulation and environmental safety of organotin coatings.
1182 · Polymerization of Trialkyltin Acrylates
Application justification for high-cost organometallic polymers
MediumThe review states that no large-scale applications had been found for ferrocenyl polymers because cheaper ceramic materials satisfied some thermal-shield needs.
Proposed direction: Identify applications where organometallic polymers provide performance beyond existing lower-cost materials.
1179 · Metallocenylene Methylene Polymers
Characterisation limits from solubility
MediumMolecular weight measurement for Group IVB condensation polymers was difficult because of low solubility.
Proposed direction: Use methods compatible with sparingly soluble or insoluble organometallic polymers.
1184 · Condensation Polymers with Group IVB Elements
Crystalline perfection in stacked phthalocyanines
MediumThe review predicts much higher conductivity for perfect small crystals of stacked phthalocyanines, implying current samples were limited by preparation quality.
Proposed direction: Prepare higher-quality small crystals and measure axial versus crosswise conductivity.
1192 · Stacked Phthalocyanine Polymers
Morphological alignment in conducting polymers
HighPartially aligned polyacetylene films could be prepared, but fully aligned material had not yet been prepared.
Proposed direction: Develop processing routes for fully aligned films to test intrinsic anisotropic conductivity.
1194 · Polyacetylene
Unresolved mixed-valence polyferrocenylene transport properties
HighConductivity, magnetic susceptibility, dielectric constant and other properties of mixed-valence polyferrocenylenes were still under investigation.
Proposed direction: Complete direct transport and electronic-property studies rather than relying on mixed-valence optical signatures alone.
1181 · Properties of Polyferrocenylene
Early-stage polyphenylene applications
LowNo immediate applications had been found for doped polyphenylene materials at the time of the review.
Proposed direction: Investigate applications that use environmental stability and possible superconducting behaviour.
1195 · Polyphenylene
Direct vinyl-metal monomer polymerisation
MediumPolymerisation of monomers with vinyl groups directly bonded to transition metals had not been accomplished.
Proposed direction: Develop stabilised monomer or polymerisation routes that avoid metal hydride elimination.
1177 · Monomers with Vinyl-Metal Bonds
Cited-study map
Mappings show which printed review references have a verified counterpart in the frozen primary corpus.
Show 37 cited-study records
| Reference | Study | Role and context | Corpus mapping |
|---|---|---|---|
| Ref. 21978 | Organometallic Polymers | historical_context · review_foundationCited in the introduction as one of the monographs framing the early organometallic-polymer field. | Unmapped |
| Ref. 61977 | Title unavailable | synthesis_context · vinylic_polymer_reviewUsed as a summary source for vinylferrocene and related vinylic organotransition-metal monomers. | Unmapped |
| Ref. 71970 | Metallocene Polymers | historical_context · metallocene_polymer_reviewCited as an early monograph on metallocene polymers and later for metallocenylene polymer background. | Unmapped |
| Ref. 121976 | Title unavailable | mechanistic_contextSupports the review's statement that transition-metal pi-complexes stabilise alpha carbonium ions but not carbanions. | Unmapped |
| Ref. 131971 | Title unavailable | transport_benchmark · synthesis_benchmarkUsed in Tables 2 and 3 for homopolymerisation and copolymerisation of vinylic organometallic monomers and nearby conductivity discussion. | Unmapped |
| Ref. 141975 | Title unavailable | synthesis_benchmarkCited for anionic polymerisation of acrylate monomers 12-20. | Unmapped |
| Ref. 151973 | Title unavailable | mechanistic_context · synthesis_benchmarkCited for detailed radical polymerisation of vinylferrocene in benzene and dioxane. | Unmapped |
| Ref. 171978 | Title unavailable | synthesis_benchmark · mechanical_property_contextCited for plasticised and block-copolymer acrylate polymer properties. | Unmapped |
| Ref. 211971 | Title unavailable | synthesis_benchmark · mixed_valence_contextCited for the most successful procedure to prepare soluble linear polyferrocenylene. | Unmapped |
| Ref. 241979 | Title unavailable | mixed_valence_context · transport_interpretationCited for polyferrocenylene synthesis review and for oxidation to a Class II mixed-valence polymer. | Unmapped |
| Ref. 311975 | Title unavailable | mixed_valence_context · spectroscopy_contextCited for detailed studies of ferrocenylene oligomers showing similar mixed-valence behaviour. | Unmapped |
| Ref. 321978 | Title unavailable | synthesis_contextCited for homopolymerisation and copolymerisation of CH2=CH-M(CH3)3 monomers. | Unmapped |
| Ref. 361978 | Title unavailable | synthesis_context · condensation_polymer_reviewCited as one of Carraher's reviews on organometallic condensation polymers. | Unmapped |
| Ref. 371977 | Title unavailable | synthesis_strategy · interfacial_polymerisationCited for interfacial synthesis approaches that avoid cyclisation or degradation in homogeneous solution. | Unmapped |
| Ref. 381971 | Title unavailable | thermal_benchmarkCited for the thermal stability of Ti/Zr/Hf Group IVB condensation polymers. | Unmapped |
| Ref. 441979 | Title unavailable | application_contextCited in the review's account of polyphosphazene development and fluorinated substituent effects. | Unmapped |
| Ref. 451979 | Title unavailable | synthesis_strategy · polyphosphazene_contextCited for unsuccessful attempts to polymerise substituted phosphazene trimers and related synthesis context. | Unmapped |
| Ref. 461979 | Title unavailable | polyphosphazene_context · structure_propertyCited for the flexible PNCl2 chain and low-temperature Tg context. | Unmapped |
| Ref. 471978 | Title unavailable | biomedical_contextCited for biocompatibility and implant application context for polyphosphazenes. | Unmapped |
| Ref. 481979 | Title unavailable | polyphosphazene_context · biomedical_contextCited for polyfluorophosphazene substitution and platinum-complex binding/release applications. | Unmapped |
| Ref. 501978 | Title unavailable | polyphosphazene_context · mechanical_property_contextCited for retained tensile strength and application-relevant resistance of alkoxyphosphazenes. | Unmapped |
| Ref. 521978 | Title unavailable | coordination_polymer_contextCited for early coordination-polymer approaches and application proposals. | Unmapped |
| Ref. 551966 | Coordination Polymers | coordination_polymer_contextCited as a historical coordination-polymer reference for the field's basic approaches. | Unmapped |
| Ref. 621971 | Title unavailable | coordination_polymer_context · application_contextCited for polymeric metal phosphinates prepared from bridging phosphinate ligands. | Unmapped |
| Ref. 631972 | Title unavailable | thermal_benchmark · coordination_polymer_contextCited for the best Cr-containing polymeric metal phosphinate materials and their thermal/mechanical properties. | Unmapped |
| Ref. 691979 | Title unavailable | transport_context · one_dimensional_conductorCited for early investigation of sulfur nitride's electrical properties. | Unmapped |
| Ref. 701978 | Title unavailable | transport_benchmark · one_dimensional_conductorCited as one of the later studies of sulfur nitride conductivity and brominated sulfur nitride. | Unmapped |
| Ref. 711977 | Title unavailable | transport_benchmark · one_dimensional_conductorCited as a later sulfur nitride electrical-property study supporting superconductivity and anisotropic transport discussion. | Unmapped |
| Ref. 721977 | Title unavailable | transport_benchmark · stacked_polymerCited for Marks and colleagues' progress with stacked phthalocyanine polymer conductors. | Unmapped |
| Ref. 731979 | Title unavailable | transport_benchmark · stacked_polymerCited with Ref. 72 for silicon, germanium and tin stacked phthalocyanine conductivity comparisons. | Unmapped |
| Ref. 741968 | Title unavailable | transport_benchmark · stacked_complexCited for the first investigation of partially oxidised tetracyanoplatinate complexes' unusual electrical properties. | Unmapped |
| Ref. 791974 | Title unavailable | transport_benchmark · synthesis_benchmarkCited in Table 2 for homopolymerisation of monomer 5 and used here for the corresponding semiconducting polymer benchmark. | Unmapped |
| Ref. 821979 | Title unavailable | mechanistic_context · synthesis_contextCited for the review's statement that anionic polymerisation was not possible for vinylferrocene-type monomers. | Unmapped |
| Ref. 831971 | Title unavailable | synthesis_context · polyacetylene_contextCited for the first high-quality polycrystalline polyacetylene films. | Unmapped |
| Ref. 841975 | Title unavailable | synthesis_context · polyacetylene_contextCited with Ref. 83 for high-quality polyacetylene films and cis/trans form control. | Unmapped |
| Ref. 851979 | Title unavailable | transport_benchmark · polyacetylene_contextCited for later electrical-property studies of polyacetylene by MacDiarmid, Heeger and co-workers. | Unmapped |
| Ref. 861979 | Title unavailable | transport_benchmark · polyphenylene_contextCited for doped polyphenylene electrical conductivity and stability comparison with polyacetylene. | Unmapped |