Morphological control of polymer network in ferroelectric liquid crystal

Hideo Fujikake, Takeshi Murashige, Jun Yonai, Hiroto Sato, Hiroshi Kikuchi, Yoshiki Iino, Masahiro Kawakita, Yuzuru Tsuchiya, Kuniharu Takizawa

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The morphology of polymer fiber network formed in ferroelectric liquid crystal devices was closely observed by optical and scanning electron microscopes, and the formation mechanism of the polymer was investigated for obtaining a rigid polymer structure supporting substrates. It was found that aligned polymer fibers are formed with fibril aggregation, which is induced by photopolymerization of monofunctional acrylate monomer aligned in parallel with the liquid crystal molecular alignment. As the monomer concentration increases, the polymer fibers are transformed into thicker and harder structures. This self-assembling phenomenon is thought to be induced by the interfacial tension of the liquid-state polymer with comparatively low molecular weight during the polymerization, and the transient unstable polymer morphology that appears in the phase separation process can be fixed by rapid curing of the polymer material.

Original languageEnglish
Pages (from-to)295-300
Number of pages6
JournalJournal of Photopolymer Science and Technology
Volume13
Issue number2
DOIs
Publication statusPublished - 2000
Externally publishedYes

Keywords

  • Ferroelectric liquid crystal
  • Fibril
  • Photopolymerization-induced phase separation
  • Polymer fiber network
  • Self-assembling process

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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  • Cite this

    Fujikake, H., Murashige, T., Yonai, J., Sato, H., Kikuchi, H., Iino, Y., Kawakita, M., Tsuchiya, Y., & Takizawa, K. (2000). Morphological control of polymer network in ferroelectric liquid crystal. Journal of Photopolymer Science and Technology, 13(2), 295-300. https://doi.org/10.2494/photopolymer.13.295