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STUDY ON PHASE TRANSITION AND CRITICAL PHENOMENA IN POLYMER CRYSTALS BASED ON LIGHT-HEATING MODULATED DTA AND HIGH PRESSURE MEASUREMENT

Research Project

Project/Area Number 14340122
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 物理学一般
Research InstitutionKYOTO INSTITUTE OF TECHNOLOGY

Principal Investigator

ITOH Takashi  KYOTO INST.TECH., POLYM.SCI.ENG., PROFESSOR, 繊維学部, 教授 (60107159)

Co-Investigator(Kenkyū-buntansha) SARUYAMA Yasuo  KYOTO INST.TECH., POLYM.SCI.ENG., PROFESSOR, 繊維学部, 教授 (50162532)
HUKAO Koji  KYOTO INST.TECH., POLYM.SCI.ENG, ASSOC.PROF., 繊維学部, 助教授 (50189908)
HUJIWARA Susumu  KYOTO INST.TECH., POLYM.SCI.ENG, ASSOC.PROF, 繊維学部, 助教授 (30280598)
HASHIMOTO Masato  KYOTO INST.TECH., POLYM.SCI.ENG., ASSIST.PROF, 繊維学部, 助手 (00273540)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥13,700,000 (Direct Cost: ¥13,700,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2003: ¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2002: ¥7,800,000 (Direct Cost: ¥7,800,000)
KeywordsLIGHT-HEATING MODULATED DTA UNDER HIGH PRESSURE / PHASE TRANSITION / CRITICAL PHENOMENA / NYLON CRYSTALS / VINYLIDENE FLUORIDE-TRIFLUOROETHYLENE COPOLYMER CRYSTALS / HIGH-PRESSURE X-RAY ANALYSIS SYSTEM / AMORPHOUS NYLON 6 / FERROELECTRICITY / 高温高圧下比熱測定 / 一次相転移 / 二次相転移 / 3種類の低温相 / 放冷相 / 高温相 / 光加熱式温度変調DSC / 高圧技術 / 結晶融解 / 構造形成 / 結晶成長
Research Abstract

There had been no reports in the world, which strictly proved appearance of second-order phase transition in polymer crystals. We recently discovered the second-order phase transition in polyamide crystals on the basis of X-ray structure analysis under high-pressure. Through such studies, we noticed that the quantitative analysis had not been performed for specific-heat measurement under high-pressure in the world, which must give us one of the most important information to discuss the phase-transitional phenomena in material. It is the reason why we started this project.
The first step of this project is to construct the high-pressure system of light-heating modulated temperature DTA(HP-LMTDTA) to perform the dynamical thermal measurement of polymers. After construction, we examined performance of the system by using the phase-transitional phenomena of 1,4-trans-polybutadiene crystal to prove it possible to measure the thermal property for the dynamical process during the phase transit … More ion under high-pressure up to 300 Mpa.
Through this project, we mainly analyzed the phase-transitional phenomena in nylon and fluoro-copolymer crystals to show that the first- and/or second-order phase transition occurs only in nylon 6Y (Y : even number ≦8) crystals even under normal and high pressure. It was also found that structural changes in vinylidene fluoride(VDF)-trifluoroethylene(TrFE) copolymer crystals are transformed from continuous (cooled phase(CP) to high-temperature phase(HP)) to discontinuous one (low-temperature phase(LP) to HP) with increasing VDF molar content or external pressure for VDF 65 % sample, where the transition from CP to LP occurs prior to the first-order phase transition from LP to HP. The sample with 65 % of VDF is composed of only CP, and LP suddenly appears in VDF 68 % sample and another LP is suggested to exist in VDF 71 and 77 % samples. Percolation theory may be applicable to explain such structural transformation very sensitive with VDF content.
Such results indicate that this system can be applied for various studies under high pressure on polymers at molecular level such as crystal growth and melting, formation process of spherulite, electrical properties etc. Less

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (41 results)

All 2005 2004 2003 2002 Other

All Journal Article (29 results) Publications (12 results)

  • [Journal Article] ナイロン結晶における相転移現象2005

    • Author(s)
      伊藤孝
    • Journal Title

      固体物理 40

      Pages: 281-288

    • NAID

      40006691101

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] ナイロン6の強誘電性と非晶構造2005

    • Author(s)
      伊藤孝
    • Journal Title

      高分子加工 54

      Pages: 147-152

    • NAID

      40006720741

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase-Transitional Phenomena in Nylon Crystals2005

    • Author(s)
      Takashi Itoh, Hiroya Ishikawa
    • Journal Title

      Solid State Physics 40-4

      Pages: 281-288

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Ferroelectricity and Amorphous Structure in Nylon 62005

    • Author(s)
      Takashi Itoh, Teruaki Yanagisawa
    • Journal Title

      Polymer Processing(in Japanese) 73-10

      Pages: 2863-3737

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase-Transitional Phenomena in Nylon Crystals2005

    • Author(s)
      Takashi Itoh
    • Journal Title

      Solid State Physics 40・4

      Pages: 281-288

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Heat Flows on the Heating Process after aging of Glassy PMMA Measured by Temperature Modulated DSC2005

    • Author(s)
      Yasuo Saruyama
    • Journal Title

      Thermochimica Acta (In press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Thermal, Structural and Ferroelectric Properties of Amorphous Phases in Quenched Nylon 6 Film2004

    • Author(s)
      Teruaki Yanagisawa
    • Journal Title

      Journal of the Physical Society of Japan 73

      Pages: 2763-2767

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase-Transitional Behavior in Vinylidene Fluoride-Trifluoroethylene Copolymer Crystals2004

    • Author(s)
      Shuichiro Miyata
    • Journal Title

      Journal of the Physical Society of Japan 73

      Pages: 1793-1797

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase Transition in Even-Even Nylon Crystals2004

    • Author(s)
      Hiroya Ishikawa
    • Journal Title

      Journal of the Physical Society of Japan 73

      Pages: 303-306

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Thermal, Structural and Ferroelectric Properties of Amorphous Phases in Quenched Nylon 6 Film2004

    • Author(s)
      Teruaki Yanagisawa, Takashi Itoh, Yasuo Saruyama, Susumu Fujiwara
    • Journal Title

      Journal of the Physical Society of Japan 73-7

      Pages: 1793-1797

    • NAID

      110001979201

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase-Transitional Behavior in Vinylidene Fluoride-Trifluoroethylene Copolymer Crystals2004

    • Author(s)
      Shuichiro Miyata, Takashi Itoh, Yasuo Saruyama, Yoshinobu Kawasaki, Teruaki Yanagisawa, Rei Iwata
    • Journal Title

      Journal of the Physical Society of Japan 73-7

      Pages: 1793-1797

    • NAID

      110001954895

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Phase Transition in Even-Even Nylon Crystals2004

    • Author(s)
      Hiroya Ishikawa, Takashi Itoh, Masato Hashimoto, Susumu Fujiwara
    • Journal Title

      Journal of the Physical Society of Japan 73-2

      Pages: 303-306

    • NAID

      110001954729

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Time-Evolution of Polymer Spherulite Formation Investigated by Light Scattering2004

    • Author(s)
      Masato Hashimoto
    • Journal Title

      Polymer Journal 36-8

      Pages: 594-599

    • NAID

      10013444054

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Thermal, Structural and Ferroelectric Properties of Amorphous Phases in Quenched Nylon 6 Film2004

    • Author(s)
      Teruaki Yanagisawa
    • Journal Title

      Journal of the Physical Society of Japan 73・10

      Pages: 2763-2767

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Time-Evolution of Polymer Spherulite Formation Investigated by Light Scattering2004

    • Author(s)
      Masato Hashimoto
    • Journal Title

      Polymer Journal 36・8

      Pages: 594-599

    • NAID

      10013444054

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Phase-Transitional Behavior in Vinylidene Fluoride-Trifluoroethylene Copolymer Crystals2004

    • Author(s)
      Shuichiro Miyata
    • Journal Title

      Journal of the Physical Society of Japan 73・7

      Pages: 1793-1797

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Phase Transition in Even-Even Nylon Crystals2004

    • Author(s)
      Hiroya Ishikawa
    • Journal Title

      Journal of the Physical Society of Japan 73・2

      Pages: 303-306

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Development of High-Pressure Modulated Temperature DTA with Light Heating System and Its Application on Polymers2003

    • Author(s)
      Takashi Itoh, Teruaki Yanagisawa, Yoshinobu Kawasaki, Yasuo Saruyama, Masato Hashimoto
    • Journal Title

      Proceedings of 58th International Calorimetry Conference (Laie, USA) 142

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Gradient Pattern Analysis of Structural Dynamics : Application to Molecular System Relaxation2003

    • Author(s)
      Reinaldo R.Rosa, Marcia R.Campos, Fernando M.Ramos, Nandamudi L.Vijaykumar, Susumu Fujiwara, Tetsuya Sat
    • Journal Title

      Brazilian Journal of Physics 33(3)

      Pages: 605-610

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Miscibility of Polymer Blends Studied by a Simplified Method of Data Analysis Using Light Heating Modulated Temperature DSC2002

    • Author(s)
      Yasuo Saruyama, S.Wakiyama, Y.Tsukahara
    • Journal Title

      J.Therm.Anal.Cal. 70

      Pages: 681-691

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mathematical Modeling of the Thermal System of Modulated Temperature Differential Scanning Calorimeter2002

    • Author(s)
      Y.Saruyama, G.Van Assche
    • Journal Title

      Thermochim.Acta 391, iss.1-2

      Pages: 87-95

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Molecular Dynamics Simulation of a Single Polymer Chain in Vacuum and in Solution2002

    • Author(s)
      Susumu Fujiwara, Tetsuya Sato
    • Journal Title

      Computer Physics Communications 147

      Pages: 342-345

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A Molecular Dynamics Simulation of Polymer Crystallization from Oriented Amorphous State2002

    • Author(s)
      A.Koyama, T.Yamamoto, Koji Fukao, Y.Miyamoto
    • Journal Title

      Phys.Rev.E 65

      Pages: 50801-50801

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Memory Effect on the Glass Transition in Vulcanized Rubber2002

    • Author(s)
      Y.Miyamoto, Koji Fukao, H.Yamao, K.Sekimoto
    • Journal Title

      Phys.Rev.Lett. 88

      Pages: 225504-225504

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Relaxation Dynamics in Thin Supported Polymer Films2002

    • Author(s)
      Koji Fukao, S.Uno, Y.Miyamoto, A.Hoshino, H.Miyaji
    • Journal Title

      J.Non-Cryst.Solids 307-310

      Pages: 517-523

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Heat Flows on the Heating Process after Aging of Glassy PMMA Measured by Temperature Modulated Differential Scanning Calorimeter

    • Author(s)
      Yasuo Saruyam
    • Journal Title

      Thermochim.Acta (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Heat Flows on the Heating Process after Aging of Glassy PMMA Measured by Temperature Modulated Differential Scanning Calorimeter

    • Author(s)
      Yoshimi Kubota, Koji Fukao, Yasuo Saruyam
    • Journal Title

      Thermochim.Acta (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Development of Temperature Modulated Dilatometer and Application to the Glass Transition of Polystyrene

    • Author(s)
      Koji Takegawa, Koji Fukao, Yasuo Saruyama
    • Journal Title

      Thermochim.Acta (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Aging phenomena in Poly(methyl methacrylate) by Dielectric Spectroscopy and Temperature Modulated DSC

    • Author(s)
      Koji Fukao, A.Sakamoto, Y.Kubota, Yasuo Saruyama
    • Journal Title

      J.Non-Cryst.Solids (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Hiroya Ishikawa: "Phase Transition in Even-Even Nylon Crystals"Journal of the Physical Society of Japan. 73・2. 303-306 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Susumu Fujiwara: "Structure Formation of a Single Polymer Chain in Solution : A Molecular Dynamics Study"Journal of Macromolecular Science Part-B Physics. 42・3&4. 455-466 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takashi Itoh: "Development of High-Pressure Modulated Temperature DTA with Light Heating System and Its Application on Polymers"International Joint Conference of the 58^<th> Calorimetry Conference and The Japan Society of Calorimetry and Thermal Analysis. 142 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Teruaki Yanagisawa: "Thermal Property and Ferroelectricity of Quenched Nylon 6"Polymer Preprints, Japan. 52・9. 1805-1806 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hiroya Ishikawa: "Phase Transition in Nylon Crystals"Polymer Preprints, Japan. 52・9. 2159 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hiroya Ishikawa: "Advanced Polymers and Processing"ICAPP Office Yonezawa, Yamagata University. 280 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Koji Fukao: "Structure formation from the oriented glassy states of poly (ethylene terephthalate)"Journal of Macromolecular Science-Physics. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Susumu Fujiwara: "Structure Formation of a Single Polymer Chain in Solution : A Molecular Dynamics Study"Journal of Macromolecular Science-Physics. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Itoh: "Polymorph and Phase-Transitional Phenomena in 1,4-trans-Polybutadiene Crystals"Proc. Int. Conf. Advanced Polymers and Processing. 118-121 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hiroya Ishikawa: "Phase Transition in Nylon Crystals"Proc.Int.Conf.Advanced Polymers and Processing. 118-121 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Susumu Fujiwara: "Molecular dynamics simulation of a single polymer chain in vacuum and in solution"Computer Physics Communications. 147. 342-345 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Koji Fukao: "Relaxation dynamics in thin supported polymer films"J. Non-Cryst. Solids. 307-310. 517-523 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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