Accession Number : ADA183449

Title :   Liquid Crystalline Copolymers of Monomer-Pairs Containing Mesogenic Units Which Exhibit Constitutional Isomerism.

Descriptive Note : Technical rept.,

Corporate Author : CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MACROMOLECULAR SCIENCE

Personal Author(s) : Percec,Virgil ; Rodriguez-Parada,Jose M ; Ericsson,Cecilia ; Nava,Hildeberto

PDF Url : ADA183449

Report Date : Jan 1987

Pagination or Media Count : 11

Abstract : The synthesis and characterization of side-chain liquid crystalline copolymers obtained from a monomer pair containing a mesogenic unit which exhibits constitutional isomerism are presented. The particular example described refers to copolymethacrylates obtained from 4-hydroxy-4'-methoxy-alpha-methylstilbene and 4-methoxy-4'-hydroxy-alpha-methylstilbene containing six methylenic units presents a nematic mesophase, while the polymer containing eleven methylenic units presents a smectic A or C mesophase. None of these polymers exhibited side-chain crystallization.

Descriptors :   *COPOLYMERS, *LIQUID CRYSTALS, *METHACRYLATES, *STILBENES, MONOMERS, POLYMERS, PHASE, CRYSTALLIZATION, SYNTHESIS(CHEMISTRY), METHYL RADICALS, POLYMERIZATION, CHEMICAL PROPERTIES, THERMOGRAPHY, THERMODYNAMICS, THERMOCHROMIC MATERIALS

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE