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Accession Number:
ADA183732
Title:
Liquid Crystalline Polymers Containing Heterocycloalkane Mesogens, Biphasic Side-Chain Liquid Crystalline Polysiloxanes Containing Trans 5-n-undecanyl-2-(4-cyanophenyl)-1,3-Dioxane Side Groups.
Descriptive Note:
Technical rept.,
Corporate Author:
CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MACROMOLECULAR SCIENCE
Report Date:
1987-01-01
Pagination or Media Count:
17.0
Abstract:
Polysiloxanes and copolysiloxanes containing the trans 5-n-undecanyl-2-4-cyanophenyl-1,3-dioxane side group as mesogen were synthesized. Their phase behavior was studied by differential scanning calorimetry and optical polarization microscopy. Homopolymers containing the mesogen and a copolymer containing 33 of the mesogen showed smectic mesomorphism. The copolymers containing the mesogen showed two well defined Tg and thus present strong evidence for a phase separated morphology.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE