Synthesis and mesomorphic behavior of poly(methylsiloxane)s and poly(methylsiloxane-co-dimethylsiloxane)s containing oligooxyethylene spacers and mesogenic side groups

V. Percec*, Chain-Shu Hsu

*Corresponding author for this work

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

The synthesis and characterization of poly(methylsiloxanes)s and poly(methylsiloxane-co-dimethylsiloxane)s containing either bis(ethylene oxide) or tris(ethylene oxide) flexible spacers and either 4-methoxy-4′-hydroxybiphenyl a mixture containing a 1:1 ratio of 4-methoxy-4′-hydroxy-α-methylstilbene and 4-hydroxy-4′-methoxy-α-methylstilbene, or 4-[5-(4-methoxyphenyl)-1,3-dioxan-2-yl]phenol mesogenic groups, in all combinations, is presented. All polymers and copolymers display smectic mesomorphism. The dependence of phase transition temperatures on the spacer length and copolymer composition is described.

Original languageEnglish
Pages (from-to)463-470
Number of pages8
JournalPolymer Bulletin
Volume23
Issue number5
DOIs
StatePublished - 1 May 1990

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