Synthesis of de-crosslinkable polyamide having hexaarylbisimidazolyl moieties
| Autor: | Takeru Iwamura, Masato Takasaki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Polymers and Plastics
Organic Chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Solvent chemistry.chemical_compound Monomer chemistry Yield (chemistry) Heck reaction Polyamide Polymer chemistry Materials Chemistry Copolymer Moiety 0210 nano-technology Derivative (chemistry) |
| Zdroj: | Polymer. 158:270-278 |
| ISSN: | 0032-3861 |
| DOI: | 10.1016/j.polymer.2018.10.070 |
| Popis: | The e-caprolactam monomer having a triphenylimidazole moiety such as DL-3-[α-4-(4,5-diphenyl-1H-imidazole-2-yl)-phenylacryloyl-amine]-e-caprolactam (1) was synthesized by the Heck reaction of 2-(4-bromophenyl)-1-(methoxymethyl)-4,5-diphenylimidazole and the e-caprolactam derivative having an acryloyl group in a good yield. The copolymerization of 1 and e-caprolactam was carried out at 250 °C by using H2O as an initiator to give copolymer (4) in a good yield. The crosslinking reaction of the obtained 2 proceeded with K3[Fe(CN)6] and KOH in a mixed solvent of ethanol and phenol. The resulting crosslinked polymer (5) was de-crosslinked under irradiation with visible light. Consequently, the thiol-capped de-crosslinked polymer (6) was obtained in a good yield. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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