期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 29, 期 3, 页码 224-228出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200700638
关键词
isotropic melt; kerr effect; liquid-crystalline polymers (LCP); phase behavior
An isotropic melt of a chiral side-chain polymethacrylate was studied by electric birefringence technique. A phase transition between two different isotropic phases was detected by Kerr effect and confirmed by WAXS measurements. The obtained experimental data can explain the previously reported bistable phase behavior of the polymer, as conventional Sm A phase is formed in slow cooling whereas a TGB-like, optically isotropic mesophase in fast cooling.
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