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.
|Number of pages||15|
|Journal||Journal of Polymer Science, Part A: Polymer Chemistry|
|Publication status||Published - 1 Oct 2003|
- Liquid-cystalline polymers (LCP)
- Living polymerization
- Radical polymerization
- Reversible addition-fragmentation chain transfer