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

Studies on Molecular Motion of Oriented Polymer Chains by the Fluorescence Analysis

Research Project

Project/Area Number 62470094
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 高分子物性
Research InstitutionKyoto University

Principal Investigator

YAMAMOTO Masahide  Kyoto University, Polym. Chem., 工学部, 教授 (40025961)

Co-Investigator(Kenkyū-buntansha) ITO Shinzaburo  Kyoto Univ., Polym. Chem. Instructor, 工学部, 助手 (50127049)
ONOGI Yoshihiko  Kyoto Univ., Polym. Chem. Instructor, 工学部, 助手 (70026201)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 1989: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1988: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1987: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsFluorescence Characteristics / Fluorescence Depolarization Method / Molecular Motion / Local Motion / Relaxation Times of Molecular Motions / Polymer Chain / Polymer Dilute Solution / Stereocomplex / 高分子鎖の局所運動 / 高分子鎖のダイナミックス / 高分子鎖の動的固さ / 緩和時間 / 稀薄溶液 / 準濃厚溶液 / 光発光特性解析 / ナノ秒時間域
Research Abstract

Dynamic behavior of polymer chains under various conditions was investigated by the fluorescence analysis such as time-resolved fluorescence decay (FD), time-resolved fluorescence polarization (FP) method, where fluorescent probes were attached to polymer chains.
1. Studies of local motion of polymer chains in dilute solution by FP method We prepared various polymers, e. g., polystyrene (PS), poly (methyl methacrylate) (PMMA) having anthracene probe attached just in the middle of polymer chains and measured the auto-correlation times of bond vectors of polymer chains in sub-ns and ns regions. From the results we could evaluated the dynamic chain stiffness and the coupling range of motional correlation of polymer chains. As for the solvent effect for PS chain, we found that the relaxation time of local motion in the theta solvent is longer than that in good solvents accompanying larger activation energies of local motion. We found that the relaxation time of chain ends is ca. two times faster than that of the middle part of the chain.
2. Studies of PMMA chain in semi-concentrated polymer solution by FP method We found that the relaxation times increase with the increase of polymer concentrations, but the motional modes scarcely change with the polymer concentrations. The behavior was well explained by the free volume theory.
3. 'Evaluation of torsional rigidity of PMMA stereocomplpx by PF method We found that the stereocomplex has very high torsional constant compared with the single chain.
4. Studies of conformational change of enzymes by the time-resolved FD analysis For immunoglobulin and tryptophanase, the relations between enzymatic activities and conformational changes were elucidated.
5. Molecular motion of polymer chains under shear stress by FP method We could observe the systematic change, but so far we could not correct the effect of birefringence due to polymer flow. So this problem was left unsolved for a future project.

Report

(4 results)
  • 1991 Final Research Report Summary
  • 1989 Annual Research Report
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (36 results)

All Other

All Publications (36 results)

  • [Publications] T.Sasaki,M.Yamamoto,and Y.Nishijima: "Chain Dynamics of PMMA in Dilute Solutions Studied by the Fluorescence Depolarization Method" Macromolecules,. 21. 610-616 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Sasaki,H.Arisawa,and M.Yamamoto: "Fluorescence Depolarization Study on Local Motions of Anthracene-Labeled Poly(alkyl methacrylate)s in Dilute Solutions and Evaluation of Their Chain Stiffness" Polymer J.,. 23. 103-115 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 山本 雅英,伊藤 紳三郎: "蛍光偏光解消法による高分子鎖の局所運動の研究" 日本化学繊維研究所講演集. 48. 35-42 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S.Yokotsuka,Y.Okada,Y.Tojo,T.Sasaki,and M.Yamamoto: "Activation Energy of Local Polymer Motions Estimated from the Fluorescence Depolarization Measurements" Polymer J.,. 23. 95-101 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Uchida,and M.Yamamoto: "Local Motion of Polystyrene Chain Studied by the Fluorescence Depolarization method" Bull.Inst.Chem.Res.Kyoto Univ.,. 66. 154-164 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Sasaki,H.Hirota,M.Yamamoto,and Y.Nishijima: "Anisotropic Rotation of Perylene Studied by Fluorescence Depolarization Method" Bull.Chem.Soc.Jpn.,. 60. 1165-1167 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Sasaki,K.Nawa,M.Yamamoto,and Y.Nishijima: "Local Chain Dynamics of PMMA in Nonentangled Concentrated Solutions Studied by the Fluorescence Depolarization Method" Eur.Polym.J.,. 25. 79-83 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Sasaki,and M.Yamamoto: "Formation and Torsion Dynamics of the Stereocomplex of Isotactic and Syndiotactic Poly(methyl methacrylate)s Studied by the Fluorescence Depolarization Method" Macromolecules,. 22. 4009-4013 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Kim,D.A.Waldo,C.C.Han,Q.Tran-Cong,and M.Yamamoto: "Temperature Dependence of Probe Diffusion in Bulk Polymer Matrices" Polymer,. 32. 108-112 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Kikuchi,Y.Gotoh,K.Hamaguchi,S.Ito,M.Yamamoto,and Y.Nishijima: "Fluorescence of the Tryptophyl Residues of the Constant Fragment of the Immunogloblin Light Chain" J.Biochem.,. 102. 651-656 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sasaki, M. Yamamoto, and Y. Nishijima: "Chain Dynamics of PMMA in Dilute Solutions Studied by the Fluorescence Depolarization Method" Macromolecules,. 21. 610-616 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sasaki, H. Arisawa, and M. Yamamoto: "Fluorescence Depolarization Study on Local Motions of Anthracene-Labeled Poly (alkyl methacrylate) s in Dilute Solutions and Evaluation of Their Chain Stiffness" Polymer J.23. 103-115 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Yamamoto, S. Ito: "Studies of Local Motion of Polymerchains by the Depolarization Method" Annual Report of the Research Institute for Chemical Fibers, Japan. 48. 35-42 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Yokotsuka, Y. Okada, Y. Tojo, T. Sasaki, and M. Yamamoto: "Activation Energy of Local Polymer Motions Estimated from the Depolarization Measurements" Polymer J.23. 95-101 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Uchida, and M. Yamamoto: "Local Motion of Polystyrene Chain Studied by the Fluorescence Depolarization Method" Bull. Inst. Chem. Res. Kyoto Univ.66. 154-164 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sasaki, H. Hirota, M. Yamamoto, and Y. Nishijima: "Anisotropic Rotation of Perylene Studied by Fluorescence Depolarization Method" Bull. Chem. Soc. Jpn.60. 1165-1167 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sasaki, K. Nawa, M. Yamamoto, and Y. Nishijima: "Local Chain Dynamics of PMMA in Nonentangled Concentrated Solutions Studied by the Fluorescence Depolarization Method" Eur. Polym. J.25. 79-83 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Sasaki, and M. Yamamoto: "Formation and Torsion Dynamics of the Stereocomplex of Isotactic and Syndyotactic Poly (methyl methacrylate) s Studied by the Fluorescence Depolarization Method" Macromolecules. 22. 4009-4013 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H. Kim, D. A. Waldow, C. C. Han, Q. Tran-Cong, and M. Yamamoto: "Temperature Dependence of Probe Diffusion in Bulk Polymer Matrices" Polymer. 32. 108-112 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H. Kikuchi, Y. Gotoh, K. Hamaguchi, S. Ito, M. Yamamoto, and Y. Nishijima: "Fluorescence of the Tryptophyl Residues of the Constant Fragment of the Immunogloblin Light Chain" J. Biochem.102. 651-656 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Tokushige, N. Tsujimoto, T. Oda, H. Honda, N. Yumoto, S. Ito, M. Yamamoto, E. H. Kim, and Y. Hiragi: "Role of Cysteine Residues in Tryptophanase for Monovalent cation-induced Activation" Biochemie. 71. 711-720 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takashi SASAKI et al.: "Local Chain Dynamics of PMMA in Nonentangled Concentrated Solutions Studied by the Fluorescence Depolarization Method" Eur.Polym.J.25. 79-83 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Takashi SASAKI et al.: "Formation and Torsion Dynamics of the Stereocomplex of Isotactic and Syndiotactic Poly(methyl methacrylate)s Studied by the Fluorescence Depolarization Method" Macromolecules. 22. 4009-4013 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Masahide YAMAMOTO et al.: "Near-infrared Charge Resonance Band of Intramolecular Carbazole Dimer Radical Cations Studied by Nanosecond Laser Photolysis" Chem.Phys.Lett. 154. 559-562 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Masanobu TOKUSHIGE et al.: "Role of Cysteine Residues in Tryptophanase for Mono-valent Cation-induced Activation" Biochemie. 71. 711-720 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 辻井敬亘他: "カルバゾ-ル基またはテレフタレ-ト基を側鎖に有する高分子のエキシプレックス-隣接基効果" 日本化学会誌. 1989. 1304-1310 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Takashi SASAKI et al.: "Chain Dynamics of Poly(alkyl methacrylate)s in Dilute Solutions Studied by the Fluorescence Depolarization Nethod" Macromolecules. 23. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Sasaki: Macromolecules. 21. 610-616 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Sasaki: European Polymer Journal. 25. 79-83 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Uchide: Bull.Inst.Chem.Res.,Kyoto Univ.66. 154-164 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Sasaki: Macromolecules. 22. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Sasaki: Macromolecules. 22. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Sasaki;K.Hirota;M.Yamamoto;Y.Nishijima: Bull.Chem.Soc.Jpn.60. 1165-1167 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] H.Kikuchi;Y.Gotoh;K.Hamaguchi;S.Ito;M.Yamamoto;Y.Nichijima: J.Biochem.102. 651-656 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] T.Sasaki;M.Yamamoto;Y.Nishijima: Macromolecules. 21. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] T.Sasaki;K.Nawa;M.Yamamoto;Y.Nishijima: Eur.Polym.J.

    • Related Report
      1987 Annual Research Report

URL: 

Published: 1987-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi