Living free-radical polymerization (reversible addition-fragmentation chain transfer) of 6-[4-(4′-methoxyphenyl)phenoxy]hexyl methacrylate:: A route to architectural control of side-chain liquid-crystal line polymers

被引：36

作者：

Hao, XJ

Heuts, JPA

Barner-Kowollik, C ^{[1
]}

Davis, TP

Evans, E

机构：

[1] Univ New S Wales, Sch Chem Engn & Ind Chem, Ctr Adv Macromol Design, Sydney, NSW 2052, Australia

[2] BHP Steel Res Labs, Port Kembla, NSW 2505, Australia

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2003年 / 41卷 / 19期

关键词：

reversible addition-fragmentation chain transfer; living polymerization; synthesis; liquid-crystalline polymers (LCP); radical polymerization;

D O I：

10.1002/pola.10894

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Side-chain liquid-crystalline polymers of 6-[4-(4'-methoxyphenyl)phenoxy]-hexyl methacrylate with controlled molecular weights and narrow polydispersities were prepared via reversible addition-fragmentation chain transfer (RAFT) polymerization with 2-(2-cyanopropyl) dithiobenzoate as the RAFT agent. Differential scanning calorimetry studies showed that the polymers produced via the RAFT process had a narrower thermal stability range of the liquid-crystalline mesophase than the polymers formed via conventional free-radical polymerization. In addition, a chain length dependence of this stability range was found. The generated RAFT polymers displayed optical textures similar to those of polymers produced via conventional free-radical polymerization. (C) 2003 Wiley Periodicals, Inc.

引用

页码：2949 / 2963

页数：15

共 65 条

[1] LIQUID-CRYSTALLINE PHOSPHAZENES BEARING BIPHENYL MESOGENIC GROUPS [J].