✦ LIBER ✦
Existence of Two Different Isotropic Phases as a Reason for Bistable Phase Behavior of an LC Side-Chain Polymethacrylate
✍ Scribed by Sergey Polushin; Viacheslav Rogozin; Ilya Beloborodov; Evgeny Rjumtsev; Mikhail Kozlovsky
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 219 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
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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