Cross-linking and de-cross-linking of triarylimidazole-based polymer

被引：6

作者：

Peng, Ya ^{[1
]}

Yu, Haiwen ^{[1
]}

Chen, Hongbiao ^{[1
]}

Huang, Zhichao ^{[1
]}

Li, Huaming ^{[1
,2
]}

机构：

[1] Xiangtan Univ, Coll Chem, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Key Lab Polymer Mat & Applicat Technol Hunan Prov, Key Lab Environm Friendly Chem & Applicat, Key Lab Adv Funct Polymer Mat,Coll Hunan Prov,Min, Xiangtan 411105, Hunan, Peoples R China

来源：

POLYMER | 2016年 / 99卷

关键词：

Triarylimidazole; Cross-linking; De-cross-linking; RAFT polymerization; IMIDAZOLE PENDENT GROUP; MAIN-CHAIN; ACRYLATE DERIVATIVES; RAFT POLYMERIZATION; INFRARED-SPECTRA; ETHER GROUPS; POLYAMIDES; POLYIMIDES; HEXAARYLBIIMIDAZOLE; MECHANISM;

D O I：

10.1016/j.polymer.2016.07.065

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The reversible addition-fragmentation chain transfer (RAFT) polymerization of 1-(4-(4,5-diphenyl-1H-imidazol-2-yl)phenyl)-4-vinyl-1H-1,2,3-triazole (DVT) was carried out in N,N-dimethylformamide at 70 degrees C using 2-(ethylthiocarbonothioylthio)-2-methylpropanoic acid as the RAFT agent and 2,2'-azobisisobutyronitrile as the initiator to give well-defined poly(DVT) (1). The cross-linking reaction of the obtained (1) was proceeded with K-3[Fe(CN)(6)] and KOH, yielding the intramolecular (2) and intermolecular cross-linked poly( DVT) (3) by tuning the polymer concentrations. The resulting cross-linked poly(DVT) (2) and (3) were de-cross-linked by visible light irradiation in the presence of ethanethiol, giving ethylthio-capped, de-cross-linked poly(DVT) (4) in good yield. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：529 / 535

页数：7

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