Li X., Zong L., Li W. et al. · Polymers · 2022 · 4563
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
D230-PyAL-Sm is the best infrared stealth coating in this study, with the lowest band gap, highest conductivity, and lowest 2-22 um emissivity.
Caveat: Application claim is based on material-property measurements; no field-scale stealth demonstration is reported.
11 · 4. Conclusions · Linked to 4 structured results
The reported first-hand materials are Schiff-base polymers and coordination-polymer coatings, not characterised conductive MOFs.
Caveat: Introduction cites a 3D microporous coordination framework from prior literature, but the paper's own samples have no reported crystallographic MOF topology or porosity.
2 · Introduction
FTIR, XPS, UV-Vis and NMR evidence support successful synthesis of D230-PyAL and metal-coordinated D230-PyAL polymers.
Caveat: No crystallographic framework structure or porosity data are reported; SI contains only supporting XPS salt spectra.
5 · 3.1. Synthesis of Polymers and Coordination Polymers · Figure 2 · Linked to 7 structured results
Metal coordination increases electrical conductivity and the authors link the improved conductivity and reduced molecular band gap to lower infrared emissivity.
Caveat: Causal interpretation is based on comparative trends among four samples; no temperature-dependent transport mechanism or carrier analysis is reported.
7 · 3.4. Infrared Emissivity · Tables 1-3 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| D230-PyAL Schiff-base polymer | not reported; polyetheramine D230 and 2,6-pyridinedicarboxaldehyde condensation polymernone in pristine polymer · polyetheramine D230; 2,6-pyridinedicarboxaldehyde-derived Schiff-base/imine units | unknown · PristineSolution-polycondensed Schiff-base polymer with imine bond formed from D230 and PyAL; no crystallographic framework or porosity assignment reported. | 3 · 3.1. Synthesis of Polymers and Coordination Polymers · Scheme 1 |
| D230-PyAL-Cu coordination polymer | not reportedCu2+ ions coordinated to Schiff-base polymer · D230-PyAL Schiff-base polymer | unknown · PristineMetal-ion coordination polymer/coating formed by introducing Cu2+ into D230-PyAL; FTIR and XPS support coordination to imine/N-containing sites. | 4 · 3.1. Synthesis of Polymers and Coordination Polymers · Scheme 2; Figure 2 |
| D230-PyAL-Ni coordination polymer | not reportedNi2+ ions coordinated to Schiff-base polymer · D230-PyAL Schiff-base polymer | unknown · PristineMetal-ion coordination polymer/coating formed by introducing Ni2+ into D230-PyAL; FTIR and XPS support coordination to imine/N-containing sites. | 4 · 3.1. Synthesis of Polymers and Coordination Polymers · Scheme 2; Figure 2 |
| D230-PyAL-Sm coordination polymer | not reportedSm3+ ions coordinated to Schiff-base polymer · D230-PyAL Schiff-base polymer | unknown · PristineMetal-ion coordination polymer/coating formed by introducing Sm3+ into D230-PyAL; FTIR and XPS support coordination to imine/N-containing sites. | 1 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| D230-PyAL coating/polymerresearch_0658__mat__mat_d230_pyal | Thin Film · Pristine Control · Pristine Framework | solution-polycondensed polymer; cast/coated for coating testsgeneric substrate for coating preparation; tinplate substrate used for mechanical coating tests · about 30 um coating thickness by SEM | 7 · 3.4. Infrared Emissivity · Table 3 |
| D230-PyAL-Cu coatingresearch_0658__mat__mat_d230_pyal_cu | Thin Film · Target Sample · Doped | D230-PyAL coordinated with Cu2+ and solution-cast/evaporated as coatinggeneric substrate for coating preparation; tinplate substrate used for mechanical coating tests · about 30 um coating thickness by SEM | 3 · 2.4. Preparation of the Polymer Coatings |
| D230-PyAL-Ni coatingresearch_0658__mat__mat_d230_pyal_ni | Thin Film · Target Sample · Doped | D230-PyAL coordinated with Ni2+ and solution-cast/evaporated as coatinggeneric substrate for coating preparation; tinplate substrate used for mechanical coating tests · about 30 um coating thickness by SEM | 3 · 2.4. Preparation of the Polymer Coatings |
| D230-PyAL-Sm coatingresearch_0658__mat__mat_d230_pyal_sm | Thin Film · Target Sample · Doped | D230-PyAL coordinated with Sm3+ and solution-cast/evaporated as coatinggeneric substrate for coating preparation; tinplate substrate used for mechanical coating tests · about 30 um coating thickness by SEM | 11 · 4. Conclusions |