Creation of polymer thin films possessing unique molecular orientations and photoresponsive properties

• Project/Area Number: 19350056
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Polymer chemistry
• Research Institution: Nagoya University
• Principal Investigator: SEKI Takahiro Nagoya University, 大学院・工学研究科, 教授 (40163084)
• Co-Investigator(Kenkyū-buntansha): TAKEOKA Yukikazu 名古屋大学, 大学院・工学研究科, 准教授 (20303084) ; NAGANO Shusaku 名古屋大学, 大学院・工学研究科, 助教 (40362264)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2008: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2007: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
• Keywords: 表面グラフト / アゾベンゼン / 高分子液晶膜 / 分子配向 / 光配向 / スメクチック層 / ゲル表面 / 液晶高分子 / 真空紫外光 / 光酸化表面 / ぬれ性変化 / スメクチック相

Research Abstract

Liquid crystalline (LC) polymer brushes containing an azobenzene (Az) mesogenic moiety on a quartz or silicon substrate are prepared by surface initiated atom transfer radical polymerization (ATRP). The grafted chain film adopted a smectec LC phase and the molecular orientation of Az mesogens in the grafted chain was parallel to the substrate plane. Highly ordered in-plane photoalignment of Az mesogens in the grafted chain was readily provided by the irradiation with linearly polarized visible light due to the effective light absorption of the Az mesogens aligned parallel to the substrate.

Research Products

• [Journal Article] Photo-triggered Mass Migrating Motions in Liquid Crystalline Azobenzene Polymer Films with Systematically Varied Thermal Properties (2010)
  • Author(s): J. Isayama, S. Nagano, T. Seki
  • Journal Title: Macromolecules (in press)
  • Peer Reviewed
• [Journal Article] Highly Ordered In-Plane Photoalignment Attained by the Brush Architecture of Liquid Crystalline Azobenzene Polymer (2009)
  • Author(s): T. Uekusa, S. Nagano, T. Seki
  • Journal Title: Macromolecules 42(1) Pages: 312-318
  • Peer Reviewed
• [Journal Article] Novel Liquid Crystalline Organic-Inorganic Hybrid for Highly Sensitive Photoinscriptions (2009)
  • Author(s): K. Nishizawa, S. Nagano, T. Seki
  • Journal Title: Chem. Mater 21(13) Pages: 2624-2631
  • Peer Reviewed
• [Journal Article] Photo-crosslinkable liquid-crystalline azo-polymer for surface relief gratings and persistent fixation (2009)
  • Author(s): W. Li, S. Nagano, T. Seki
  • Journal Title: New J. Chem 33 Pages: 1343-1348
  • Peer Reviewed
• [Journal Article] Photo-responsive Liquid Crystal Based on (1-Cyclohexenyl)phenyldiazene) as a Close Analogue of Azobenzene (2009)
  • Author(s): M. Sato, S. Nagano, T. Seki
  • Journal Title: Chem. Commun Pages: 3792-3794
  • Peer Reviewed
• [Journal Article] Micropatterning of Titanium Oxide via Phototactic Motions (2009)
  • Author(s): K. Nishizawa, S. Nagano, T. Seki
  • Journal Title: J. Mater. Chem 19(39) Pages: 7191-7194
  • Peer Reviewed
• [Journal Article] Nano-dot pattern Engineering of Block Copolymer Surface Micelles on Water Surface (2009)
  • Author(s): S.Nagano, Y.Matsushita, S.Shinma, T.Ishizone, T.Seki
  • Journal Title: Thin Solid Films 518 Pages: 724-728
  • Peer Reviewed
• [Journal Article] Highly Ordered In-Plane Photoalignment Attained by the Brush Architecture of Liquid Crystalline Azobenzene Polymer (2009)
  • Author(s): T.Uekusa, S.Nagano, T.Seki
  • Journal Title: Macromolecules 42 Pages: 312-318
  • Peer Reviewed
• [Journal Article] Ideal Spread Monolayer Formation and Surface Pressure Induced Orientation in Poly (9, 9'-di-n-octylfluorene-alt-benzothiadiazole) via Hybridization with Liquid Crystal Molecule on Water (2009)
  • Author(s): A.Toda, S.Nagano, T.Seki
  • Journal Title: Synthetic Metals 159 Pages: 835-838
  • Peer Reviewed
• [Journal Article] Highly Ordered In-Plane Photoalignment Attained by the Brush Architecture of Liquid Crystalline Azobenzene Polymer (2009)
  • Author(s): T. Uekusa, S. Nagano, T. Seki
  • Journal Title: Macromolecules 42 Pages: 312-318
  • Peer Reviewed
• [Journal Article] Photo-triggered Surface Relief Gratings in Supramolecular Liquid Crystalline Polymer System with Detachable Azobenzene unit (2008)
  • Author(s): N. Zettsu, T. Ogasawara, N. Mizoshita, S. Nagano, T. Ubukata, T. Seki
  • Journal Title: Adv. Mater 20(3) Pages: 516-531
  • Peer Reviewed
• [Journal Article] Photoalignment and Patterning of Chromonic/Silica Nanohybrid on Photocrosslinkable Polymer Thin Film (2008)
  • Author(s): M. Hara, S. Nagano, N. Kawatsuki, T. Seki
  • Journal Title: J. Mater. Chem 18(27) Pages: 3259-3263
  • Peer Reviewed
• [Journal Article] Interaction Between a Liquid Crystalline Molecule (5CB) and a Poly(vinyl alcohol) Derivative Containing Azobenzene Group at the Air-Water Interface Sum Frequency Generation Spectroscopic Study (2008)
  • Author(s): C. Ohe, H.K. Ito, T. Seki(7人中7番目), ら
  • Journal Title: J. Phys. Chem 112(16) Pages: 6359-6365
  • Peer Reviewed
• [Journal Article] Ideal Spread Monolayers and Multilayers Formation of Fully Hydrophobic Polythiophenes via Liquid Crystal Hybridization on Water (2008)
  • Author(s): S. Nagano, S. Kodama, T. Seki
  • Journal Title: Langmui 24(18) Pages: 10498-10504
  • Peer Reviewed
• [Journal Article] Ideal Spread Monolayers and Multilayers Formation of Fully Hydrophobic Polythiophenes via Liquid Crystal Hybridization on Water (2008)
  • Author(s): S. Nagano, S. Kodama, T. Seki
  • Journal Title: Langmuir 24 Pages: 10498-10504
  • Peer Reviewed
• [Journal Article] Light-Directed Dynamic Structure Formation and Alignment in Photoresponsive Thin Films (2008)
  • Author(s): T. Seki, S. Nagano
  • Journal Title: Chem. Lett. 37 Pages: 484-489
  • NAID: 10021080010
  • Peer Reviewed
• [Journal Article] Surface-Mediated Photoalignment of Organic/Inorganic Nanohybrids (2008)
  • Author(s): T. Seki, S. Nagano, et. al.
  • Journal Title: Journal of the Ceramic Society of Japan 116(3) Pages: 361-368
  • NAID: 110006623951
  • Peer Reviewed
• [Journal Article] Unique Molecular Orientation in a Smectic Liquid Crystalline. (2007)
  • Author(s): T. Uekusa, S. Nagano T. Seki
  • Journal Title: Langmuir 23 Pages: 4642-4645
  • Peer Reviewed
• [Journal Article] Chromonic/Silica Nanohybrids. Synthesis and Macroscopic Alignment (2007)
  • Author(s): M. Hara, T. Seki, et. al.
  • Journal Title: Langmuir 23 Pages: 12350-12355
  • Peer Reviewed
• [Journal Article] Photoresponsive Self-Assembly Motions in Polymer Thin Films (2007)
  • Author(s): Takahiro Seki
  • Journal Title: Current Opinion in Solid State and Mate rials Science 10 Pages: 241-248
  • Peer Reviewed
• [Presentation] 光応答高分子の界面組織化と機能 (2010)
  • Author(s): 関隆広
  • Organizer: 2010年東海シンポジウム
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2010-01-14
• [Presentation] New Strategies in Photo-triggered Surface Relief Formation (2010)
  • Author(s): T. Seki
  • Organizer: 10th International Symposium on Biomimetic Materials Processing (BMMP-10)
  • Place of Presentation: Nagoya University
• [Presentation] -Dynamic Meso- and Micro- fabrication and alignment in Thin Films by Photochemical Strateg (2009)
  • Author(s): T. Seki
  • Organizer: 2nd Nagoya Univ-Tsinghua Univ-Toyota Coop Joint Symposium
  • Place of Presentation: Hainan Island, China
• [Presentation] Nanopattern Engineering in Ultrathin Films of Block Copolymers (2008)
  • Author(s): T. Seki, S. Nagano
  • Organizer: International Symposium on Engineering Micro/Nano Materials Based on Self-Assembling and Self-Organization
  • Place of Presentation: 日本未来館、東京
  • Year and Date: 2008-12-09
• [Presentation] -Surface-Mediated Photoalignment of Organic/Inorganic Nanohybrids (2008)
  • Author(s): T. Seki, M. Hara, H. Fukumoto, S. Nagano
  • Organizer: SPIE's International Symposium on Optics, Photonics 2008 (Liquid Crystals XI)
  • Place of Presentation: San Diego Convention Center USA
• [Presentation] -Photoresponsive liquid crystals for tuning and aligning nanostructures (2008)
  • Author(s): T. Seki
  • Organizer: 22nd International Liquid Crystal Conference (ILCC 2008)
  • Place of Presentation: Jeju Korea
• [Presentation] Photoreactive polymer thin films for controlling nanostructures (2008)
  • Author(s): T. Seki
  • Organizer: RadTech UV, EB Expo and Conference 2008
  • Place of Presentation: Chicago McCormic Place USA
• [Presentation] Photoalignment of Organic/Silica Nanohybrids (2008)
  • Author(s): T. Seki
  • Organizer: International Symposium on Advanced Display Materials and Devices (ADMD 2008)
  • Place of Presentation: Jeju Korea
• [Presentation] Nanopattern Engineering of Block Copolymers in the 2D State (2008)
  • Author(s): T. Seki, S. Nagano
  • Organizer: The 8th International Conference on Nano-Molecular Electronics (ICNME2008)
  • Place of Presentation: ポートピアホテル神戸
• [Presentation] Photocontrol of Morphology and Orientation of Liquid crystalline Polymer. (2007)
  • Author(s): Takahiro Seki
  • Organizer: The 10th Pacific Polymer Conference
  • Place of Presentation: 神戸国際会議場
  • Year and Date: 2007-12-06
• [Presentation] Macroscopic Photoalignment and Patterning of Organic/Inorganic Nanohybrids (2007)
  • Author(s): Takahiro Seki, et. al.
  • Organizer: International Symposium on EcoTopia Science‘07
  • Place of Presentation: Nagoya University
  • Year and Date: 2007-11-23
• [Presentation] Photocontrol of Morphology and Orientation of Liquid Crystalline. (2007)
  • Author(s): Takahiro Seki, et. al.
  • Organizer: 9th European Conference on Liquid Crystals
  • Place of Presentation: Lisbon,Portugal
  • Year and Date: 2007-07-05
• [Book] Light-responsive 2D Motions and manipulations in Azobenzene-containing Liquid Crystalline Polymer Materials, Smart Light-Responsive Materials (2009)
  • Author(s): T. Seki
  • Publisher: Wiley
• [Book] 有機無機メソ組織体の光配向制御, 光配向テクノロジーの開発動向(市村國宏監修)第4編第2章 (2009)
  • Author(s): 原光生, 永野修作, 関隆広
  • Publisher: シーエムシー出版
• [Book] 高分子超薄膜とナノ構造の光配向制御, 光配向テクノロジーの開発動向(市村國宏監修)第3編第2章 (2009)
  • Author(s): 永野修作, 関隆広
  • Publisher: シーエムシー出版
• [Book] 有機薄膜形成とデバイス応用展開 (大森裕監修) (2009)
  • Author(s): 永野修作, 関隆広
  • Total Pages: 8
  • Publisher: シーエムシー出版
• [Book] 疎水性共役高分子の単分子膜およびLangmuir-Blodgett集積膜の形成in 有機薄膜形成とデバイス応用展開 (2008)
  • Author(s): 永野修作, 関隆広
  • Total Pages: 8
  • Publisher: シーエムシー出版
• [Book] バイオミネラリゼーションとそれに倣う新機能材料の創製 (2007)
  • Author(s): 関 隆広
  • Publisher: シーエムシー出版
• [Remarks]
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