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Crystallization mechanism of polymer

Research Project

Project/Area Number 12127203
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionKyoto University

Principal Investigator

KANAYA Toshiji (2002)  Kyoto University, Institute for Chemical Research, Professor, 化学研究所, 教授 (20152788)

梶 慶輔 (2000-2001)  京都大学, 化学研究所, 教授 (00026072)

Co-Investigator(Kenkyū-buntansha) NISHIDA Kouji  Kyoto University, Institute for Chemical Research, Assistant Professor, 化学研究所, 助手 (80189290)
IMAI Masayuki  Ochanomizu University, Department of Physics, Professor, 理学部, 教授 (60251485)
FUKAO Kouji  Kyoto Institute of Technology, Department of Polymer Science, Associate Professor, 繊維学部, 助教授 (50189908)
金谷 利治  京都大学, 化学研究所, 助教授 (20152788)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥17,800,000 (Direct Cost: ¥17,800,000)
Fiscal Year 2002: ¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 2001: ¥12,300,000 (Direct Cost: ¥12,300,000)
Keywordspolymer crystallization / induction period / mesomorphic state / shear flow / oriented glass / shishi-kebab structure / MD simulation / Depletion effect / 結晶化 / 誘導期 / スピノーダル分解 / 静置場 / 流動場 / 排除体積効果 / 相分離
Research Abstract

We have studied formation mechanism of polymer crystallization, focusing our attention on induction period of crystallization before nucleation. This work can be classified into the following four subjects.
(1)Structural formation in preparatory process of polymer crystallization : We have directly observed transformation process from molten state to mesomorphic state of isotactic polypropylene(iPP) using super temperature jump apparatus developed by our laboratory.
(2)Polymer crystallization under shear flow : We have evaluated structure formation process of so-called shishi-kebab structure in crystallization of iPP under shear flow, using time resolved depolarized light scattering, small angel X-ray scattering, small angel neutron scattering and wide angel neutron scattering techniques.
(3)Crystallization mechanism of polymers from oriented glass : In order clarify the mechanism of formation of so-called long period, we have studied crystallization process of oriented poly (ethylene terephthalate) using a time resolved wide angel scattering technique
(4)We investigated effects of phase separation on polymer crystallization in mixture of rod-like polymers and flexible polymers and clarified depletion effects in polymer crystallization.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] G.Matsuba, K.Kaji, T.Kanaya, K.Nishida: "Detailed Analysis of the Induction Period of Polymer Crystallization by Depolarized light Scattering"Phys.Rev. E65. 61801-61807 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Kaji, K.Nishida, G.Matsuba, T.Kanaya, M.Imai: "Details of Structure Formation During the Induction Period of Spinodal Type Polymer Crystallization"J.Macromol.Sci. B42. 709-715 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Kaji: "Crystalline and Amolphous Polymers, Applications of Neutron Scattering to Soft Condensed Matter"Gordon and Breach Science Publishers (Australia). 55 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] G.Matsuba, K.Kaji, T.Kanaya, K.Nishida: "Detailed Analysis of the Induction Period of Polymer Crystallization by Depolarized light Scattering"Phys. Rev.. E65. 61801-61807 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Kaji, K.Nishida, G.Matsuba, T.Kanaya, M.Imai: "Details of Structure Formation During the Induction Period of Spinodal type Polymer Crystallization"J.Macromol.Sci. B42. 709-715 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Kaji: "Crystalline and Amorphous Polymers, Applications of Neutron Scattering to Soft Condensed Matter"Gordon and Breach Science Publishers, Australia. 55 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] G.Matsuba, K.Kaji, T.Kanaya, K.Nishida: "Detailed Analysis of the Induction Period of Polymer Crystallization by Depolarized light Scattering"Phys.Rev. E65. 61801-61807 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Kaji, K.Nishida, G.Matsuba, T.Kanaya, M.Imai: "Details of Structure Formation During the Induction Period of Spinodal Type Polymer Crystallization"J.Macromol.Sci.. (In press).

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Kaji: "Crystalline and Amolphous Polymers, Applications of Neutron Scattering to Soft Condensed Matter"Gordon and Breach Science Publishers, Australia. 55 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Go Matsuba: "Further Evidence of Spinodal Decomposition during the Induction Period of Polymer Crystallzation : Time-resolved Small- angle X-ray Scattering Prior to Crystallization of Poly(ethylene Naphthalate)"Phys.Rev.E. 62・2. R1496-R1500 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Go Matsuba: "Conformational Change and Orientation on Fluctuations Prior to the Crystallization of Syndiotatic Polystyrene"Macromolecules. 32・26. 8932-8937 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Keisuke Kaji: "Crystalline and Amorphous Polymers, Applications of Neutron Scattering to Soft Condensed Matter, Chapter 5"Gordon and Breach Science Publishers, Australia. 55 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2018-03-28  

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