• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2002 Fiscal Year Final Research Report Summary

High performance photomanipulation in photo-cross-linkable polymer liquid crystals

Research Project

Project/Area Number 13650957
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, Department of Materials Science and Chemistry, Associate Professor, 工学研究科, 助教授 (60271201)

Project Period (FY) 2001 – 2002
KeywordsPhoto orientation / Polyme Liquid Crystal / Photoreaction / Birefringent Film / Self-organization
Research Abstract

In this research project, I aimed to create new photoreactive polymer liquid crystals which generate high order of photoinduced reorientation. For example, reversion of the in-plane reorientation direction of mesogenic groups has been observed for the first time in novel polymethacrylate liquid crystal (PLC) films substituted with a 4-methoxycinnamoyloxybiphenyl side group. The reversion was generated by irradiation with linearly polarized ultraviolet (LPUV) light and a subsequent annealing. Irradiation with LPUV light induces negative optical anisotropy of the films as a result of an axis-selective photoreaction of the side groups. The direction of the thermally enhanced reorientation is dependent on the degree of photoreaction and the distribution of photoproducts, while the induced orientational order in both directions, S, was larger than 0.5. Additionally, three-dimensional reorientation cane be realized and the resultant film showed good applicability to birefringent film for LCDs.

  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] N.Kawatsuki, T.Kawakami, T.Yamamoto: "A Photoinduced Birefringent Film with a High Orientational Order Obtaind from a Novel Polymer Liquid Crystal"Advanced Materials. 13・17. 1337-1339 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kawatsuki, M.Hayashi, T.Yamamoto: "Alignment of Photo-Cross linkable Copolymer Liquid Crystals Induced by Linearly Polarized Ultraviolet Light Inacliation"Macromolecur Chemistry and Physics. 202・15. 3087-3098 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kawatsuki, K.Goto, T.Kawakami, T.Yamamoto: "Reversion of Alignment Direction in the Thermally Enhanced Photoorientation of Photo-Cross-Linkable Polymer Liquid Crystal"Macromoleculs. 35・3. 706-713 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kawatsuki, M-X.An, T.Hasegawa, T.Yamamoto, T.Sakai: "Photocontrol of Thermally Induced Reorientation of Amorphous Composite Film with Photo-Cross-Linkabe Polymer Liquid Crystal"Japanese Journal of Applied Physics. 41. L198-L200 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kawatsuki, N.Furuso, E.Uchida, T.Yamamoto: "Control of In-Plane and Out-Of-Plane Reorientation in Photo-Cross-Linkable Copolymer Liquid-Crystal Films"Macromolecur Chemistry and Physics. 203・17. 2438-2445 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kawatsuki, T.Hasegawa, H.Ono, T.Yamamoto: "Scattering Type Polarizer Based on Polymer Blend of Photo Cross linkable Polymer and Photoinactive Polymer"Chemistry Letters. 12. 1256-1257 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 川月(他): "光機能性有機・高分子材料の新局面"シーエムシー出版. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Kawatsuki, K. Goto, T. Yamamoto: "Photoinduced anisotropy and photoalignment of nematic liquid crystals by a novel polymer liquid crystal with, a coumarin containing side group"Liq. Cryst.. 28. 1171-1176 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, T. Kawakami, T. Yamamoto: "A Photoinduced Bireflingent Film with a High Orientational Order from a Novel Polymer Liquid Crystal"Adv. Mater.. 13. 1337-1339 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, M. Hayashi, T. Yamamoto: "Alignment of Photo-Cross-Linkable Copolymer Liquid Crystals Induced by Linearly Polarized UV Irradiation and Thermal Treatment"Mol. Cryst. Liq. Cryst.. 368. 423-430 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, T. Kawakami, T. Yamamoto: "Photoalignment Control of Liquid Crystals on Photo-Cross-Linkable Methacrylate Copolymer Films Comprising 4-(4'-Methoxycinnamoyloxy) Biphenyl Side Group"Mol Cryst. Liq. Cryst.. 368. 525-533 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, M. Hayashi, T. Yamamoto,: "Alignment of Photo-Crosslinkable Copolymer Liquid Crystals Induced by Linearly Polarized Ultraviolet Light Irradiation and Annealing: Effect of Heating Rate"Macromol Chem. Phys.. 202. 3087-3098 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, T. Sakai, M. X. An, T. Hasegawa, T. Yamamoto: "Optical birefringent film by photoreactive high-and low-molecular liquid crystal composites (invited paper)"Proc. SPIE. 4663. 109-116 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, K. Goto, T. Kawakami, T. Yamamoto: "Reversion of Alignment Direction in the Thermally Enhanced Photoorientation of Photo-Cross-Linkable Polymer Liquid Crystals"Macromolecules. 35. 706-713 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, M. X. An, T. Hasegawa, T. Yamamoto, T. Sakai: "Photocontrol of Thermally Induced Reorientation of Amorphous Composite Film with Photocrosslinkable Polymer Liquid Crystal and Non-Liquid Crystalline Rodlike Monomer"Jpn. J. Appl Phys.. 41. L198-L200 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, N. Furuso, K. Goto, T. Yamamoto: "Three-Dimensional Orientation of Mesogenic Moieties in Photo-Cross-Linkable Copolymer Liquid Crystals by Irradiation with Linearly Polarized Light"J. Photopolym. Sci. Technol. 15. 265-270 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, N. Furuso, E. Uchida, T. Yamamoto: "Control of In-plane and Out-of-plane Reorientation in Photo-Cross-Linkable Copolymer Liquid Crystal Films by Irradiation with Linearly Polarized Ultraviolet Light and Annealing"Macromol Chem. Phys.. 203. 2438-2445 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, T. Hasegawa, H. Ono, T. Yamamoto: "Scattering Linear Polarizer Based on Polymer Blend of Photo-cross-linkable Polymer Liquid Crystal and Photoinactive Polymer"Chem. Lett.. 2002. 1256-1257 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Ono, A. Emoto, N. Kawatsuki, T. Hasegawa: "Self-organized phase gratings in photoreactive polymer liquid crystals"Appl. Phys. Lett.. 82. 1359-1361 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, E. Uchida, T. Yamamoto: "Photocontrol of Birefringence and In-plane Molecular Orientation in Copolymer Liquid Crystal Films with 4-Methbxyazobenzene and Photo-Cross-Linkable Side Groups Macromol"Chem. Phys.. 204. 584-590 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, H. Nakashima, T. Yamamoto: "A comparative study on the thermally enhanced reorientation between random and diblock methacrylate copolymers with photo-cross-linkable mesogenic side groups by irradiating with linearly polarized ultraviolet light"Polymer. in print.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Kawatsuki, T. Hasegawa, H. Ono, T. Tamoto: "Polarization triplet transfer and thermally enhanced photoinduced molecular reorientation in a photo-cross-linkable polymer liquid crystal by irradiating with linearly polarized light"Adv. Mater..

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2004-04-14  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi