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

Sol-Gel Transition and Interaction between Fluorine-Contained Polymer/Organic Solvents

Research Project

Project/Area Number14550852
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 InstitutionKanagawa Institute of Technology

Principal Investigator

OKABE Masaru  Kanagawa Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (00121228)

Project Period (FY) 2002 – 2003
Project Status Completed(Fiscal Year 2003)
Budget Amount *help
¥2,600,000 (Direct Cost : ¥2,600,000)
Fiscal Year 2003 : ¥1,100,000 (Direct Cost : ¥1,100,000)
Fiscal Year 2002 : ¥1,500,000 (Direct Cost : ¥1,500,000)
Keywordsthermoreversible gel / poly(vinylidene fluoride) / sol-gel transition Flory-Huggins interaction parameter / inverse gas chromatography / time-resolved FT-IR / gelation mechanism / PVdF conformation / ゲル化過程 / ゲル形成能 / in situ IR法 / ゲル構造
Research Abstract

The Flory-Huggins interaction parameter (χ_12) of poly(vinylidene fluoride)(PVdF)/organic solvent system was measured over wide range of temperature by an inverse gas chromatography (IGC) using many kinds of solvents such as alkane, alkene, ketone, lactone, and nitrogen-containing solvent. The thermoreversible gelation of PVdF solution was discussed from the magnitude of interaction parameter χ_12 between PVdF and solvent. The parameter χ_12 was measured for a concentrated PVdF solution by the usual IGC technique.
The parameter χ_12 obtained for each PVdF/solvent system increased slowly with decreasing temperature. The present systems were divided into three groups according to the magnitude of χ_12 in the vicinity of room temperature, i.e., group (a) with χ_12>> 0.5, group (b) with χ_12 ≒ 0.5, and group (c) with χ_12 << 0.5. The group (b), to which ketone and lactone belong, converted to thermoreversible gels accompanying with crystallization of polymer.
The gelation process of PVdF/organic solvent system was investigated through measurement of in situ Fourier transform infrared (FT-IR) spectroscopy. The time-resolved FT-IR spectra suggested that the sol-gel transition took place taking the conformation T_3GT_3G' for the system where the parameter χ_12 was nearly equal to 0.5 such as PVdF in γ-butyrolactone. For the system where the parameter χ_12 became larger than 0.5 such as PVdF in cyclohexanone, 3-pentanone, 3-hexanone, 3-heptanone, or 3-octanone, the sol-gel transition occurred taking the conformation TGTG'.

Report

(3results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report

Research Products

(11results)

All Other

All Publications

  • [Publications] Masaru Okabe: "The Flory-Huggins Interaction Parameter and Thermoreversible Gelation of Poly(vinylidene fluoride) in Organic Solvents"Polymer Journal. 35. 798-803 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 瀧川 裕貴: "ポリブチレンサクシネートの有機溶媒中でのゾル-ゲル転移"高分子論文集. 61. 186-191 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 有岡 由夏: "ゲル電解質としてのポリ(フッ化ビニリデン)/有機溶媒系ゲルのゲル化過程とモルホロジー"神奈川工科大学研究報告. B-27. 90-91 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 有岡 由夏: "ポリ(フッ化ビニリデン)/有機溶媒系ゲルのゲル化とモルホロジー"神奈川工科大学研究報告. B-28. 66-67 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Masaru Okabe: "The Flory-Huggins Interaction Parameter and Thermoreversible Gelation of Poly(vinylidene fluoride) in Organic Solvents"Polym. J.. Vol.35. 798-803 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuhki Takigawa: "Sol-Gel Transition of Poly (butylene succinate) in Organic Solvents"Kobunshi Ronbunshu. Vol.61 No.3. 186-191 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Masaru Okabe: "The Flory-Huggins Interaction Parameter and Thermoreversible Gelation of Poly(vinylidene fluoride) in Organic Solvents"Polymer Journal. 35. 798-803 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 瀧川 裕貴: "ポリブチレンサクシネートの有機溶媒中でのゾル-ゲル転移"高分子論文集. 61. 186-191 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 有岡 由夏: "ゲル電解質としてのポリ(フッ化ビニリデン)/有機溶媒系ゲルのゲル化過程とモルホロジー"神奈川工科大学研究報告. B-27. 90-91 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 有岡 由夏: "ポリ(フッ化ビニリデン)/有機溶媒系ゲルのゲル化とモルホロジー"神奈川工科大学研究報告. B-28. 66-67 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 有岡 由夏: "ゲル電解質としてのポリ(フッ化ビニリデン)/有機溶媒系ゲルのゲル化過程とモルホロジー"神奈川工科大学研究報告. B-27. 90-91 (2003)

    • Related Report
      2002 Annual Research Report

URL :

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

Information FAQ News Terms of Use

Powered by NII kakenhi