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

Synthesis of thermosensitive double-layer gel by polymer reaction

Research Project

Project/Area Number 18550195
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Polymer/Textile materials
Research InstitutionHiroshima University

Principal Investigator

IIZAWA Takashi  Hiroshima University, Graduate School of Engineering, Associate Professor (60130902)

Co-Investigator(Kenkyū-buntansha) GOTO Takehiko  Hiroshima University, Graduate School of Engineering, Assistant Professor (10274127)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥4,070,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2006: ¥2,900,000 (Direct Cost: ¥2,900,000)
KeywordsThermosenseitive Gel / Polymer Reaction / Double-layer Gel / Bending Behavior / Core-shell Type Gel / 屈曲性
Research Abstract

The purpose of this study is to establish synthetic method of asymmetric, thermosensitive double-layer gel by amidation of poly(acrylic acid) gel-1,8-diazabicyclo-[5,4,0]-7-undecene salt (DAA) with alkylamine.
1. The first amidation of DAA with alkylamines proceeded nearly quantitatively at 80℃ in the presence of triphenylphosphite to give the corresponding DAA-poly(N-alkylacrylamide) (PNAA) core-shell type gels. The thickness of the shell layer was controlled by the reaction time. PNAA(2)-PNAA(1) core-shell type gels were prepared by the second amidation of the DAA-PNAA core-shell type gel with another alkylamine under the similar conditions as the first amidation.
2. The swelling/de-swelling of shell layers and cores in the PNAA(2)-PNAA(1) core-shell type gels occurred almost independently in response to the temperature changes.
3. The semi-cylindrical, double-layer gels were prepared by cutting the cylindrical PNAA(2)-PNAA(1) core-shell type gels into halves.
4. The resulting semi-cylindrical, double-layer gels were markedly bent in water at temperatures between the lower critical solution temperatures (LCSTs) of PNAA(2) and PNAA(1). The reversible bending behavior was observed in response to stepwise temperature changes cross the LCSTs. However, the destruction on the boundary occurred gradually, since the shape of the bent gel was extremely distorted.
5. A new approach to the preparation of asymmetric thermosensitive PNAA(2)-PNAA(1) double-layer gels, which were not damaged by this deformation, by several procedures was proposed.
6. A thin long, asymmetric, thermosensitive double-layer gel was prepared. This gel can be bent in zigzag with high-speed response.

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (24 results)

All 2007 2006

All Journal Article (4 results) (of which Peer Reviewed: 2 results) Presentation (20 results)

  • [Journal Article] Synthesis and Swelling/De-swelling Behavior of Core-Shell Type Gel Consisting of Two Different Poly (N-alkylacrylamide) Gel2007

    • Author(s)
      T. Iizawa, et. al.
    • Journal Title

      Polymer Journal 39・11

      Pages: 1177-1184

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Synthesis and Swelling/De-swelling Behavior of Core-Shell Type Gel Consisting of Two Different Poly(N-alkylacrylamide) Gel Layers2007

    • Author(s)
      T., Iizawa, et. al.
    • Journal Title

      Polymer Journal 39

      Pages: 1177-1184

    • NAID

      10019785412

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Synthesis and Swelling/De-swelling Behavior of Core-Shell Type Gel Consisting of Two Different Poly (N-alkylacrylamide) Gel Layers2007

    • Author(s)
      T. Iizawa
    • Journal Title

      Polymer Journal 39-11

      Pages: 1177-1184

    • NAID

      10019785412

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Porous Poly(N-isopropylacrylamide) Gel Beads by Sedimentation Polymerizationand Their Morphology2007

    • Author(s)
      T.Iizawa, et al.
    • Journal Title

      Journal of Applied Polymer Science, 104

      Pages: 842-850

    • Related Report
      2006 Annual Research Report
  • [Presentation] Preparation of asymmetric thermosensitive double-layer gel2007

    • Author(s)
      T. Iizawa, et. al.
    • Organizer
      The 10th Pacific Polymer Conference (PPC10)
    • Place of Presentation
      神戸
    • Year and Date
      2007-12-06
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Preparation of Asymmetric Thermosensitive Double-layer Gel2007

    • Author(s)
      T., Iizawa, et. al.
    • Organizer
      The 10th Pacific Conference (PPC10)
    • Place of Presentation
      Kobe
    • Year and Date
      2007-12-06
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Preparation of asymmetric thermosensitive double-layer gel2007

    • Author(s)
      T. Iizawa
    • Organizer
      Pacific Polymer Conference (PPC10)
    • Place of Presentation
      神戸
    • Year and Date
      2007-12-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] ポリアクリル酸ゲルのアミド化の再検討(2)2007

    • Author(s)
      飯澤 孝司, 他.
    • Organizer
      第56回高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-20
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Reexamination of Amidation of Poly(acrylic acid) Gel (2)2007

    • Author(s)
      A., Terao, et. al.
    • Organizer
      The 56th kobunshi nennjitaikai
    • Place of Presentation
      Nagoya
    • Year and Date
      2007-09-20
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] ポリアクリル酸ゲルのアミド化の再検討2007

    • Author(s)
      飯澤 孝司
    • Organizer
      第56回高分子討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2007-09-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] ポリアクリル酸ゲルのアミド化の再検討2007

    • Author(s)
      寺尾彰浩, 他.
    • Organizer
      第56回高分子年次大会
    • Place of Presentation
      京都
    • Year and Date
      2007-05-30
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Reexamination of Aamidation of Poly(acrylic acid) Gel2007

    • Author(s)
      A., Terao, et. al.
    • Organizer
      The 56th kobunshi nennjitaikai
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-05-30
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 非対称感温性二層構造ゲルの合成と屈曲特性2007

    • Author(s)
      飯澤 孝司, 他
    • Organizer
      高分子材料開発のための俯瞰的シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2007-01-11
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Asymmetric Thermosensitive Double-layer Gel and Its Bending Behavior2007

    • Author(s)
      T., Iizawa, et. al.
    • Organizer
      Kobunshi zairyouno tameno fukanteki symposium
    • Place of Presentation
      Tokyo
    • Year and Date
      2007-01-11
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 非対称感温性二層構造ゲルの合成とその屈曲特性2006

    • Author(s)
      飯澤 孝司, 他.
    • Organizer
      化学工学会第38回秋季大会
    • Place of Presentation
      福岡
    • Year and Date
      2006-09-17
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 非対称感温性二層構造ゲルの合成2006

    • Author(s)
      飯澤 孝司, 他.
    • Organizer
      第55回高分子討論会
    • Place of Presentation
      富山
    • Year and Date
      2006-09-17
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Asymmetric Thermosensitive Double-layer Gel and Its Bending Behavior2006

    • Author(s)
      T., Iizawa, et. al.
    • Organizer
      Kagakukougaku The 38 Shukitaikai
    • Place of Presentation
      Fukuoka
    • Year and Date
      2006-09-17
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Asymmetric Thermosensitive Double-layer Gel2006

    • Author(s)
      A., Terao, et. al.
    • Organizer
      The 55th kobunshi toronkai
    • Place of Presentation
      Toyama
    • Year and Date
      2006-09-17
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 非対称二層構造ゲルの合成とその屈曲特性2006

    • Author(s)
      寺尾彰浩, 他
    • Organizer
      第52回高分子夏季大学
    • Place of Presentation
      松山
    • Year and Date
      2006-07-26
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Asymmetric Thermosensitive Double-layer Gel and Its Bending Behavior2006

    • Author(s)
      A., Terao, et. al.
    • Organizer
      The 52th Kobunshi Kakidaigaku
    • Place of Presentation
      Matsuyama
    • Year and Date
      2006-07-26
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] ポリアクリル酸ゲルとエポキシドの付加反応によるゲルカプセルの合成2006

    • Author(s)
      飯澤 孝司, 他.
    • Organizer
      第55回高分子学会年次大会
    • Place of Presentation
      名古屋
    • Year and Date
      2006-05-25
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 非対称感温性二層構造ゲルの合成とその屈曲特性2006

    • Author(s)
      寺尾彰浩, 他.
    • Organizer
      第55回高分子学会年次大会
    • Place of Presentation
      名古屋
    • Year and Date
      2006-05-25
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Gel capsule by Addition of Polyacrylic Acid Gel with Epoxide2006

    • Author(s)
      T., Iizawa, et. al.
    • Organizer
      The 55th kobunshi nennjitaikai
    • Place of Presentation
      Nagoya
    • Year and Date
      2006-05-25
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis of Asymmetric Thermosensitive Double-layer Gel2006

    • Author(s)
      A., Terao, et. al.
    • Organizer
      The 55th kobunshi nennjitaikai
    • Place of Presentation
      Nagoya
    • Year and Date
      2006-05-25
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

URL: 

Published: 2006-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi