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Development of refractive index change polymers based on novel photo-rearrangement reaction

Research Project

Project/Area Number 17K05889
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Polymer chemistry
Research InstitutionKanagawa University

Principal Investigator

Kameyama Atsushi  神奈川大学, 工学部, 教授 (80231265)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords芳香族複素環 / 光転位 / 分子屈折 / 高分子 / 屈折率変化 / 屈折率 / 機能性高分子 / 光化学反応
Outline of Final Research Achievements

The purpose of this study is to develop polymeric materials that their refractive index increase based on novel photo-rearrangement. The compounds that generate C=O or C=S groups during the photo-rearrangement were designed. Some aromatic heterocycle-containing carboxylic acid derivatives and benzyl derivatives were synthesized to investigate their photochemical reaction. It was revealed that the photo-rearrangement of the compounds selectively proceeded. Polystyrene and ladder-type polysilsesquioxane derivatives with the photo reactive groups in side chains were synthesized. The photo-rearrangement of the polymers in the film state was examined to found that the photo-rearrangement proceeds selectively. The refractive index of the polymer films increased from 0.008 to 0.04 after the photo-rearrangement, and it was demonstrated that the synthesized polymers are useful as refractive index changing polymers.

Academic Significance and Societal Importance of the Research Achievements

光や熱などの外部刺激で屈折率が変化する屈折率変化高分子は、光通信における光導波路や光記録素子への応用が期待されている。既知の屈折率変化高分子で利用されている光化学反応は、ほとんどが教科書記載の光化学反応であるが、様々な課題が指摘されている。したがって、選択的で高効率の新奇な光転位反応による屈折率変化を確立し、それを基盤とした光機能性高分子の研究は学術的意義、および高速通信を実現するための素材開発として大きな意義がある。本研究では、新規光転位官能基を有する、ビニル系ポリマー、ラダー型ポリシルセスキオキサン、ポリウレタンなど様々な構造の屈折率変化高分子を開発した。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 Other

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Refractive Index Modulation by Photo-Fries Rearrangement of Main Chain-Type Aromatic Polyurethanes2019

    • Author(s)
      2.A. Takahashi, T. Watanabe, A. Kameyama
    • Journal Title

      Journal of Photopolymer Science and Technology

      Volume: 32 Issue: 2 Pages: 243-247

    • DOI

      10.2494/photopolymer.32.243

    • NAID

      130007744362

    • ISSN
      0914-9244, 1349-6336
    • Year and Date
      2019-06-24
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] イソブチレン部分を有する芳香族ポリウレタンの光フリース転位と屈折率増加2019

    • Author(s)
      高橋 明, 岸 祐太朗, 石毛 亮平, 安藤 慎治, 亀山 敦
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] トリベンジルチオシアヌレートの新奇な光転位反応に伴う屈折率増加2019

    • Author(s)
      前原 健志, 高橋 明, 亀山 敦
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Refractive Index Modulation by Photo-Fries Rearrangement of Main Chain-type Aromatic Polyurethanes2019

    • Author(s)
      A. Takahashi, T. Watanabe, Y. Kishi, A. Kameyama
    • Organizer
      The 36th international conference of photopolymer science and technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] キシレン構造を有する芳香族ポリウレタンの光フリース転位と屈折率増加2018

    • Author(s)
      高橋 明、渡邉太一、亀山 敦、安藤慎治
    • Organizer
      第26回 ポリイミド・芳香族系高分子会議
    • Related Report
      2018 Research-status Report
  • [Remarks] 神奈川大学研究者情報

    • URL

      https://kenkyu.kanagawa-u.ac.jp/kuhp/KgApp?kyoinId=ymkmgygmggg

    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 光学材料、光学素子、及び物品の屈折率を変化させる方法2019

    • Inventor(s)
      亀山 敦、高橋 明
    • Industrial Property Rights Holder
      亀山 敦、高橋 明
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-004789
    • Filing Date
      2019
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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