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Structure Formation and Relaxation Phenomena in Polymeric Systems

Research Project

Project/Area Number 07651104
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 InstitutionKYOTO UNIVERSITY

Principal Investigator

MIYAMOTO Yoshihisa  Kyoto University, Faculty of Integrated Human Studies, Associate Professor, 総合人間学部, 助教授 (00174219)

Co-Investigator(Kenkyū-buntansha) FUKAO Koji  Kyoto University, Faculty of Integrated Human Studies, Assistant, 総合人間学部, 助手 (50189908)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsPOLYMER / CRYSTAL GROWTH / HIGHER ORDER STRUCTURES / SAXS / DIELECTRIC RELAXATION
Research Abstract

Experiments and analysis were performed for the following three kinds of polymers.
1.Isotactic polystirene : From small-angle x-ray scattering and electron microscopy, it is clarified that the crystal thickness is larger than the amorphous one, although the degree of crystallinity of specimen is about 30%. The long spacing is quantitatively obtained by the atomic force microscopy on the surface of crystallized thin film. In the crystallization in thin film, it is shown that crystal morphology and the dislocations are affected by the substrates and that the growth rate is reciprocally proportional to the film thickness, and the results were interpreted in terms of the reptation model.
2.Polyethylene terephthalate : Simultaneous real-time measurements of dielectric relaxation and x-ray scattering was performed. Before crystallization is observed, the dielectric alpha relaxation changes into another alpha'relaxation, then the change in dielectric relaxation occurs accompanying the crystallization. This phenomena are interpreted as follows : the mode of molecular motion in amorphous region changes prior to crystallization and then the mode changes into the one constrained by the crystalline lamellae.
3.Polyvinylidene fluoride : From the simultaneous real-time measurements of dielectric relaxation and x-ray scattering during the crystallization process from the melt, it is shown that the growth of lamellar structure and the relaxation the crystalline region are simultaneously developed.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] T.Matsumoto: "Dielectic Properties and Phase Transition of Polydiacetylene-bis (p-toluene Sulphonate)" J.Phys.Soc.Japan. 65巻4号. 1093-1098 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.Okumura: "Melting Point Maximum against Pressure in Poly-4-Methyl-Penten-1 Crystals" Polymer. 37巻11号. 2285-2287 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.J.Sutten: "The Lamellar Thickness of Melt Cryotallized Isotactic Polystyrene as Determined by Atomic Force Microscopy" Polymer. 37巻24号. 5529-5532 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Izumi: "Crystal Growth of Polymers in Thin Films" J.Crystal Growth. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Fukao: "Relaxation Behavior of α-process of PET during Crystallization Process" J.Non-Cryst.Solid. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Fukao: "Dynamics of α-Relaxation and Structure Formation during Crystallization Process of Polymer : Dielectoic Relaxation and SAXS on PET" Prog.Theor.Phys., suplement. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Matsumoto: "Dielectric Properties and Phase Transition of Polydiacetylene-bis (p-Toluene Sulphonate)" J.Phys.Soc.Jpn.65 no.4. 1093-1098 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.Okumura: "Melting Point Maximum against Pressure in Poly-4-Methyl-Pentene-1 Crystals" Polymer. 37 no.11. 2285-2287 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.J.Sutton: "The Lamellar Thickness of Melt Crystallized Isotactic Polystirene as Determined by Atomic Force Microscopy" Polymer. 37 no.24. 5529-5532 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Izumi: "Crystal Growth of Polymers in Thin Films" J.Cryst.Growth. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Fukao: "Relaxation Behavior of alpha-Process of Poly (ethylene terephthalate)" J.Non-Cryst.Solid. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Fukao: "Dynamics of alpha-Relaxation and Structure Formation during Crystallization Process of Polymers : Dielectric Relaxation and Small-angle X-ray Scattering on PET" Progr.Theor.Phys., Supplement. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Matsumoto et.al.: "Dielectric Properties and Phase Transition of Polydiacetylene-bisCp-Toluene Sulphonate" J.Phys.Soc.Japan. 65巻4号. 1093-1098 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Okumura: "Melting Point Maximum against Pressure in Poly-5-Methyl-Pentene-1 Crystals" Polymer. 37巻11号. 2285-2287 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.J.Sutton: "The Lamellar Thickness of Melt Crystallized Isotactic Polystyrene as Determined by Atomic Force Microscopy" Polymer. 37巻24号. 5529-5532 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Izumi: "Crystal Growth of Polymers in Thin Films" J.Crystal Growth. (in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Fukao: "Relaxation Behavior of α-process of PET during Crystallization Process" J.Non-Cryst.Solid. (in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Fukao: "Dynamics of α-Relaxation and Structure Formation during Crystallization Process of Polymers : Dielectric Relaxation and SAXS on PET" Prog.Theor.Phys.,supplement. (in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] S OKumura, A. Toda, H. Miyaji K. Izumi and Y. Miyamoto: "Melting Maximum aginst Pressure in Poly-4-Methyl-Pentene-1 Crystals" Polymer. 37(in press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Matsumoto, S:J. Sutton, K. Izumi H. Miyaji. K. Fukao, Y. Miyamoto: "Dielectric Properties and Phase Transition of Polydiacetylene-bis(p-Taluine Sulponate)" J. Phys Soc. Japan. 95(in press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] K. Fukao, Y. Miyamoto: "Dielectric. Relaxation of Poly(ethylone terephthalate)during Ceystallization Process" Proe. warkshop on non-azuilibriun phiromena in superuded Huid, glasse and amorphous materials. (in press).

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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