Highly birefringent liquid-crystalline polymers for photonic applications: Synthesis of liquid-crystalline polymers with side-chain azo-tolane mesogens and their holographic properties

Kunihiko Okano, Atsushi Shishido, Osamu Tsutsumi, Takeshi Shiono, Tomiki Ikeda

研究成果: Article査読

32 被引用数 (Scopus)

抄録

We have synthesized highly birefringent liquid-crystalline polymers (LCPs) containing an azobenzene group directly connected to a tolane moiety (P3AT/m), in which the alkyl spacer length (CH2)m was varied as m = 6, 9 and 12. All LCPs showed a nematic phase in a broad temperature range (>170 °C). The homogeneously aligned LCP films showed a high value of birefringence (about 0.4) and a large change in the birefringence could be induced by photoinduced alignment change. Grating formation of LCPs has been explored in a glassy state. The diffraction efficiency (η) showed a maximum when an order-disorder change was completed in the bright areas of the interference patterns. Studies on the effects of light intensity on the grating formation suggested that the diffraction efficiency was high (η = 20%) even though the alignment change of the azotolane moieties was small. Furthermore, the behavior of the grating formation was found to be dependent on the alkyl spacer length of P3ATm.

本文言語English
ページ(範囲)3395-3401
ページ数7
ジャーナルJournal of Materials Chemistry
15
33
DOI
出版ステータスPublished - 2005 9 7

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

フィンガープリント 「Highly birefringent liquid-crystalline polymers for photonic applications: Synthesis of liquid-crystalline polymers with side-chain azo-tolane mesogens and their holographic properties」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル