空気界面操作に基づく光あぶり出しレリーフ形成機能の創出

• Project Area: Application of Cooperative-Excitation into Innovative Molecular Systems with High-Order Photo-functions
• Project/Area Number: 15H01084
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Nagoya University
• Principal Investigator: 関 隆広 名古屋大学, 工学研究科, 教授 (40163084)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: 光応答高分子 / インクジェット / 光照射 / 液晶高分子

Outline of Annual Research Achievements

申請者らは、空気界面側に光反応性のアゾベンゼンを有する高分子をスキン層として設けることで、液晶高分子の配向を光化学的にコマンド制御できることを見出した。前年度はそれまで面内制御に加えて面外制御も可能であることを示した。
平成28年度は、シアノビフェニル系の側鎖型高分子を用いて、薄膜中でのメソゲン配向の制御に関して重要な知見である、空気側と基板側のメソゲン配向を精査した。また、これまで空気界面からの光配向制御に関して、高分子スキン層（約20 nm膜厚）を用いてきたが、水面単分子膜を用いて、単分子層１層のみを表面に転写した膜においても、膜中のメソゲンの配向変化が認められることが分かった。単分子層で効果があることを示した意義は大きい。
アゾベンゼン系液晶高分子膜の表面へのブロック共重合体をインクジェット塗布することにより、紫外光照射によってそこを起点として大きな物質移動が観測されることが分かった。塗布する高分子物質によって物質移動が観測される場合とされない場合があることが分かり、現在その要因について検討中である。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] SRG Inscription in Supramolecular Liquid Crystalline Polymer Film: Replacement of Mesogens (2017)
  • Author(s): S. Mitsui, S. Nagano, M. Hara, T. Seki
  • Journal Title: Crystals Volume: 7 Issue: 2 Pages: 52-52
  • DOI: 10.3390/cryst7020052
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Photoalignment of Vertically Oriented Microphase Separated Lamellae in LC-LC Diblock Copolymer Thin Film (2017)
  • Author(s): K. Beppu, Y. Nagashima, M. Hara, S. Nagano, T. Seki
  • Journal Title: Macromol. Rapid Commun. Volume: 38 Issue: 13
  • DOI: 10.1002/marc.201600659
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Light-directed alignment, surface morphing and related processes: recent trends (2016)
  • Author(s): T. Seki
  • Journal Title: J. Mater. Chem. C Volume: 4 Issue: 34 Pages: 7895-7910
  • DOI: 10.1039/c6tc02482c
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High-density liquid crystalline polymer brushes formed via surface segregation and self-assembly (2016)
  • Author(s): K. Mukai, M. Hara, S. Nagano, T. Seki
  • Journal Title: Angew. Chem. Int. Ed. Volume: 55 Issue: 45 Pages: 14028-14032
  • DOI: 10.1002/anie.201607786
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Light-melt adhesive based on dynamic carbon frameworks in a columnar liquid-crystal phase (2016)
  • Author(s): Shohei Saito, Shunpei Nobusue, Eri Tsuzaka, Chunxue Yuan, Chigusa Mori, Mitsuo Hara, Takahiro Seki, Cristopher Camacho, Stephan Irle, Shigehiro Yamaguchi
  • Journal Title: Nat. Commun. Volume: 7 Issue: 1 Pages: 12094-12094
  • DOI: 10.1038/ncomms12094
  • NAID: 120006496927
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Free Surface Command Layer for Photoswitchable Out-of-Plane Alignment Control in Liquid Crystalline Polymer Films (2016)
  • Author(s): T. Nakai, D. Tanaka, M. Hara, S. Nagano, T. Seki
  • Journal Title: Langmuir Volume: 32 Issue: 3 Pages: 909-914
  • DOI: 10.1021/acs.langmuir.5b04325
  • Peer Reviewed
• [Journal Article] Facile morphological control of fluorescent nano/microstructures via self-assembly and phase separation of trigonal azobenzenes showing aggregation-induced emission enhancement in polymer matrices (2015)
  • Author(s): Mina Han, Yukikazu Takeoka, Takahiro Seki
  • Journal Title: Journal of Materials Chemistry C Volume: 3 Issue: 16 Pages: 4093-4098
  • DOI: 10.1039/c5tc00462d
  • Peer Reviewed
• [Journal Article] Alternation of side chain mesogen orientation caused by the backbone structure in liquid crystalline polymer thin films (2015)
  • Author(s): D. Tanaka, Y. Nagashima, M. Hara, S. Nagano, T. Seki
  • Journal Title: Langmuir Volume: 31 Issue: 42 Pages: 11379-11383
  • DOI: 10.1021/acs.langmuir.5b02442
  • Peer Reviewed
• [Journal Article] Dynamic photoinduced realignment processes in photoresponsive block copolymer films: effects of the chain length and block copolymer architecture (2015)
  • Author(s): M. Sano, F. Shan, M. Hara, S. Nagano, Y. Shinohara, Y. Amemiya, T. Seki
  • Journal Title: Soft Matter Volume: 11 Issue: 29 Pages: 5918-5925
  • DOI: 10.1039/c5sm01140j
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Photoresponsive Surface Wrinkle Morphologies in Liquid Crystalline Polymer Films (2015)
  • Author(s): T. Takeshima, W. Liao, Y. Nagashima, K. Beppu, M. Hara, S. Nagano, T. Seki
  • Journal Title: Macromolecules Volume: 48 Issue: 18 Pages: 6378-6384
  • DOI: 10.1021/acs.macromol.5b01577
  • Peer Reviewed
• [Presentation] New stragegies for t he photoalignment of liquid crystalline polymers (2016)
  • Author(s): Takahiro Seki
  • Organizer: The 11th SPSJ International Polymer Conference (IPC2016)
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2016-12-13
  • Int'l Joint Research / Invited
• [Presentation] 自由界面を介した液晶配向制御 (2016)
  • Author(s): 関 隆広
  • Organizer: 第65回高分子討論会
  • Place of Presentation: 神奈川大学
  • Year and Date: 2016-09-14
  • Invited
• [Presentation] Free surface command layer for the photoalignment (2016)
  • Author(s): Takahiro Seki, Shusaku Nagano
  • Organizer: KJF International Conference on Organic Materials for Electronics and Photonics 2016 (KJF-ICOMEP)
  • Place of Presentation: アクロス福岡
  • Year and Date: 2016-09-04
  • Int'l Joint Research / Invited
• [Presentation] Free surface command layer for the photoalignment of liquid crystalline polymers (2016)
  • Author(s): Takahiro Seki, Kei Fukuhara, Daisuke Tanaka, Takashi Nakai, Mitsuo Hara, Shusaku Nagano
  • Organizer: 8th Japanese-Italian Liquid Crystal Workshop (JILCW2016)
  • Place of Presentation: 京都市国際交流会館
  • Year and Date: 2016-07-05
  • Int'l Joint Research / Invited
• [Presentation] Free surface command layer for photoalignment of liquid crystalline polymer films (2016)
  • Author(s): Takahiro Seki, Kei Fukuhara, Daisuke Tanaka, Takashi Nakai, Mitsuo Hara, Shusaku Nagano
  • Organizer: 99th Canadian Chemistry Conference & Exhibition
  • Place of Presentation: Canada Halifax
  • Year and Date: 2016-06-05
  • Int'l Joint Research / Invited
• [Presentation] 液晶高分子膜の配向制御における自由界面の役割 (2016)
  • Author(s): 関 隆広
  • Organizer: 日本化学会 特別セッション「高次複合光応答分子システムの開拓」
  • Place of Presentation: 同志社大学京田辺キャンパス
  • Year and Date: 2016-03-24
  • Invited
• [Presentation] 液晶材料の光配向における新展開 (2016)
  • Author(s): 関 隆広
  • Organizer: 帝人21世紀フォーラム
  • Place of Presentation: 東京大崎ブライトコアホール
  • Year and Date: 2016-01-30
  • Invited
• [Presentation] New strategies in photoalignment of liquid crystalline polymers (2015)
  • Author(s): Takahiro Seki
  • Organizer: 2015 Campus Asia Symposium
  • Place of Presentation: 中国 上海交通大学
  • Year and Date: 2015-11-04
  • Int'l Joint Research / Invited
• [Presentation] Photoalignable Radical Initiator for Anisotropic Polymerization in Liquid Crystalline Media (2015)
  • Author(s): Takahiro Seki. Daichi Ymaoka, Mitsuo Hara, Shusaku Nagano
  • Organizer: The 18th International Symposium on Advanced Display Materials and Devices
  • Place of Presentation: 韓国 慶州 K-hotel
  • Year and Date: 2015-10-22
  • Int'l Joint Research / Invited
• [Presentation] Photoalignment of mesoscopic polymer structures by light (2015)
  • Author(s): Takahiro Seki, Shusaku Nagano
  • Organizer: The 8th Nagoya U-Toyota Motors-Tsinghua U-Hokkaido U-Xinjiang Normal U (NTTHX) Joint Symposium
  • Place of Presentation: 中国 Urmuqi
  • Year and Date: 2015-08-09
  • Int'l Joint Research / Invited
• [Book] Photon-Working Switches (2017)
  • Author(s): Takahiro Seki, Shusaku Nagano, Mitsuo Hara
  • Total Pages: 20
  • Publisher: Springer
• [Remarks] 名古屋大学関研究室ホームページ
  • URL: http://www.apchem.nagoya-u.ac.jp/06-BS-2/sekilabo/index-j.html
• [Remarks] 名古屋大学 関研究室
  • URL: http://www.apchem.nagoya-u.ac.jp/06-BS-2/sekilabo/index-j.html
• [Remarks] 第2回光配向と光パターニングの国際会議（PhoSM2016）
  • URL: http://www.apchem.nagoya-u.ac.jp/06-BS-2/phosm/index.html