Synthesis of ferroelectric liquid crystalline polymers by ring opening polymerization

Chain-Shu Hsu*, C. J. Lee

*Corresponding author for this work

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

The synthesis of two series of side-chain liquid crystalline polyoxetanes and polyoxiranes containing 4-alkanyloxybiphenyl-4′-yl (2S,3S)-2-chloro-3-methylvalerate side groups is presented. Differential scanning calorimetry, polarizing optical microscopy, and X-ray diffractometry reveal smectic mesomorphism for all obtained polymers. Most of the prepared polyoxetanes present smectic A and chiral smectic C phases. The polyoxetane containing twelve methylene units in the spacer is the only one showing two enantiotropic smectic A and B phases. All of the obtained polyoxiranes display two enantiotropic smectic A and B phases. Although the polyoxetane and polyoxirane backbones are more flexible than the polymethacrylate backbone, side-chain crystallization do not occur in any of the synthesized polymers.

Original languageEnglish
Pages (from-to)101-112
Number of pages12
JournalMaterials Research Society Symposium - Proceedings
Volume425
StatePublished - 1 Dec 1996
EventProceedings of the 1996 MRS Spring Symposium - San Francisco, CA, USA
Duration: 8 Apr 199611 Apr 1996

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