期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 41, 期 19, 页码 2949-2963出版社
JOHN WILEY & SONS INC
DOI: 10.1002/pola.10894
关键词
reversible addition-fragmentation chain transfer; living polymerization; synthesis; liquid-crystalline polymers (LCP); radical polymerization
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.
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