Thermoresponsive polymerized gemini dicationic ionic liquid

被引：45

作者：

Men, Yongjun ^{[1
]}

Schlaad, Helmut ^{[1
]}

Voelkel, Antje ^{[1
]}

Yuan, Jiayin ^{[1
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, D-14424 Potsdam, Germany

来源：

POLYMER CHEMISTRY | 2014年 / 5卷 / 11期

关键词：

CRITICAL SOLUTION TEMPERATURE; POLY(IONIC LIQUID); WATER; COPOLYMERS; TRANSITION; PNIPAM;

D O I：

10.1039/c3py01790g

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new type of gemini poly(ionic liquid), poly[(1,8-octanediyl-bis(tri-n-butylphosphonium) 4-styrene sulfonate], was synthesized via the free radical polymerization of a dicationic ionic liquid monomer in DMF. This poly(ionic liquid) presented a lower critical solution temperature (LCST)-type phase transition in aqueous solution. Unusually this phase transition can be observed even at a concentration as low as 0.1 wt%. Additionally, the type and concentration of external salt can influence the cloud point. Copolymerisation of this gemini dicationic ionic liquid monomer with divinylbenzene crosslinker in water led to the formation of a hydrogel, which exhibited a temperature-triggered volume change in water.

引用

页码：3719 / 3724

页数：6

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