Enhancement of polymer structural ordering in polymer-stabilised blue phases for improved electro-optical properties

Hirotsugu Kikuchi, Takahiro Ashimine, Zehui Qin, Hiroki Higuchi, Shizuka Anan, Yasushi Okumura

研究成果: Contribution to journalArticle査読

抄録

Polymer-stabilised blue phase (PSBP) could be employed in novel fast response optical and photonic devices. It is inferred that inside PSBPs, the polymers are selectively aggregated by location in -1/2 disclinations, which are defects coexisting with the blue phase as a periodic lattice, thereby extending the temperature range of the blue phase. The polymer aggregate structure in PSBPs strongly affects their physical properties. In this study, we employed a non-destructive synchrotron ultra-small-angle X-ray diffraction analysis to investigate the effect of polymerisation rates on the polymer aggregate structure in PSBPs prepared with monomers of different polymerisation rates and examined the structure formation process of the polymer during polymerisation. When methacrylate monomers, which exhibit a relatively low polymerisation rate, were used to form polymers in PSBP, the resulting polymer was more selectively aggregated at disclinations in the PSBP. Furthermore, the electro-optical effect in the PSBP was successfully improved by reducing the polymer concentration in the PSBPs prepared with the optimised monomer combinations.

本文言語英語
論文番号772
ジャーナルSymmetry
13
5
DOI
出版ステータス出版済み - 5 2021

All Science Journal Classification (ASJC) codes

  • コンピュータ サイエンス(その他)
  • 化学(その他)
  • 数学 (全般)
  • 物理学および天文学(その他)

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