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Alignment of Photoreactive Polymer Liquid Crystals by Ultra Violet Light

Research Project

Project/Area Number 11650933
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子構造・物性(含繊維)
Research InstitutionHimeji Institute of technology

Principal Investigator

KAWATSUKI Nobuhiro  Himeji Institute of Technology, Faculty of Engineering, Associated Professor, 工学部, 助教授 (60271201)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsPhotoreaction / Photoalignment / Polymer Liquid Crystal / Liquid Crystal Display / Photo-cross-linking / 偏光 / 液晶 / 配向フィルム
Research Abstract

We investigated photorientation of polymer liquid crystal films and alignment control of liquid crystal (LC) on photo-cross-linkable polymer films using a slantwise nonpolarized ultraviolet (NP-UV) light irradiation. A polymer having several kinds of photoreactive mesogenic groups, such as 6-[4-(4'-methoxycinnamoyloxy) biphenyloxy] hexyl side-group, anthracene-containing side group or coumarin containing side groups. In addition, copolymers with methacrylate derivatives comprising photoinactive side-groups were also synthesized and used for the experiments. We clarified that the mesogenic side groups could align by the use of non polarized UV light as well as the sue of polarized UV light. Further, the LC aligned homogeneously or homeotropically with tilt angles, and the alignment behavior was dependent on the type of the (co) polymers and LCs.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] N.KAWATSOKI,H.TAKATSUKA,T.YAMAMOTO: "Indined Homeotropic Alignment Control of Liquid Crystals on Photo cross-Linkable Polymer Film by Slantwise Nonpolarized Ultraviolet Light Irradiation"Japanese Journal of Applied Physics. 39・3. L230-L232 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.KAWAATSOKI,H.TAKATSUKA,T.YAMAMOTO: "Coplanar alignment of mesogenic moieties in a photo cross-linked liquid crystalline polymer film containing cinnamoyl groups"Applied Physics Letters. 75・10. 1386-1389 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.KAWATSOKI,K.MATSUYOSHI,T.YAMAMOTO: "Alignment of Photo-Cross-Linkable Copolymer Liquid Crystals Induced by Linearly Pohriged Ultraviolet Irradiation and Thernal Treatment"Macromolecules. 33・5. 1698-1702 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.KAWATSOKI,K.MATSUYOSHI,M.HAYASHI,H.TAKATSUKA: "Photoreaction of Photo-cross-linkable Methacrylate Polymer Films Comprizing 2-Cinnamoyloxyethoxybiphenyl side Group"Chemistry of Materials. 12・6. 1549-1555 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.KAWATSUKI,T.ARITA,Y.KAWAKAMI,T.YAMAMOTO: "Photoalignment of Ligiud Crystals on Photo-Cross-Linkable Polymer Films with Anthracene at the End of the Side Group"Japanese Journal of Applied Physics. 39・10. 5943-5946 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawatsuki, H.Takatsuka and T.Yamamoto: "Inclined Homeotropic Alignment Control of Liquid Crystals on Photo-Cross-Linked Polymer Film by Slantwise Nonpolarized Ultraviolet Light Irradiation."Jpn.J.Appl.Phys. 39. 230-232 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawatsuki, H.Takatsuka, and T.Yamamoto: "Coplanar alignment of mesogenic moieties in a photocrosslinked liquid crystalline polymer film containing cinnamoyl groups"Appl.Phys.Lett.. 75. 1386-1388 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawatsuki, K.Matsuyoshi and T.Yamamoto: "Alignment of Photo-Cross-Linkable Copolymer Liquid Crystals Induced by Linearly Polarized Ultraviolet Irradiation and Thermal Treatment : Effect of Copolymerization Ratio (2)"Macromolecules. 33. 1698-1702 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawatsuki, K.Matsuyoshi, M.Hayashi, H.Takatsuka and T.Yamamoto: "Photoreaction of Photo-Cross-Linkable Methacrylate Polymer Films Comprising 2-Cinnamoyloxyehoxybiphenyl Side Group by Linearly Polarized Ultraviolet Light and Liquid crystal Alignment on the Resultant Films"Chem.Mater.. 12. 1549-1555 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Kawatsuki, T.Arita, Y.Kawakami and T.Yamamoto: "Photoalignment of Liquid Crystals on Photo-Cross-Linkable Polymer Films with Anthracene at the End of the Side Group"Jpn.J.Appl.Phys.. 39. 5943-5946 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N,KAWATSOKI,H.TAKATSUKA T.YAMAMOTO: "Indined Homeotropic Alignment Control of Liquid Crystals on Photo Cross-Linkable Polymer Film by Slantwse Nonpolarized Ultraviolet Light Irradiation"Japanese Journal of Applied Physics. 39・3. L230-L232 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.KAWATSOKI,H.TAKATSOKA T.YAMAMOTO: "Coplanar-alignment of mesogenic moieties in a photocross linked liquid crystalline polymer film containg cinnamoyl groups"Applied Physics Letters. 75・10. 1386-1389 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.KAWATSOKI,K,MATSUYOShi T.YAMAMOTO: "Alignment of Photo-Cross-Linkable Copolymer Liquid Crystals Induced by Linearly Polaried Ultraviolet Irradiation and Thernal Treatanl"Macromolecules. 33・5. 1698-1702 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.KAWATSUKI,K.MATSUYOSHi M.HAYASHI,H.TAKATSUKA: "Photoreaction of Photo-cross-linkable Methacrylate Polymer Films Compinting 2-Cinnamoy lyoxyethoxyhi Phenyl Side Group"Chemisfry of Materials. 12・6. 1549-1555 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.KAWATSUKI,T.ARITA.Y.KAWAKAMI,T.YAMAMOTO: "Photoalignment of Liquid Crystals on Photo-Cross-Linkable Polymer Films with Anthracene of the End of the Side Group"Japanese Journal of Applied Physics. 39・10. 5943-5946 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Kawatsuki,H.Takatsuka,T.Yamamoto: "Coplanar Alignment of mesogenic moieties in a photo-cromliked liquid Crystalline Polymer film,containing cinnamolyl groups"Applied Physics Letters. 75.10. 1386-1389 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Kawatsuki,T.Yamamoto,H.Ono.: "Optical Anisotropy of Photo Cross Linkable Polymer Film and Photaligment Control of Nematic Liquid Crystals Using Non Polarized VD iraddation"Polymer Journal. 31.7. 630-632 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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