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

Personal Author(s):

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.

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE