Polymerization in the liquid crystalline state of vinyl ether monomers
Conference
·
OSTI ID:141633
- Royal Institute of Technology, Stockholm (Sweden)
Liquid crystalline phenylbenzoate vinyl ether was polymerized cationically in both anisotropic and isotropic monomeric melts, using photochemical initiation by onium salts. High molecular mass polymers with a narrow molecular mass distribution (around 2) were produced by cationic polymerization at high temperatures ({<=}{degrees}C). The initial state of the monomer, nematic or isotropic, did not affect neither molecular mass, molecular mass distribution, nor polymerization rate. {sup 13}C-NMR studies show that the polymer formed is atactic. Ordered 30-50 {mu}m films were produced by polymerization of mesogenic vinyl ether monomers oriented in the nematic and smectic phase.
- OSTI ID:
- 141633
- Report Number(s):
- CONF-930304--
- Country of Publication:
- United States
- Language:
- English
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