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構造転移に基づく形状記憶ゲルの作製と感温性透過弁への応用

Research Project

Project/Area Number 07555591
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 高分子合成
Research InstitutionHokkaido University

Principal Investigator

長田 義仁  北大, 理学(系)研究科, 教授 (60007804)

Co-Investigator(Kenkyū-buntansha) ぐん 剣萍  北海道大学, 大学院・理学研究科, 助教授 (20250417)
安永 秀計  京都工芸繊維大学, 工芸学部, 助手 (80241298)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1996: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordsゲル / 構造規則性 / 形状記憶 / 相転移 / 相分離 / 構造転移 / 人工弁
Research Abstract

アクリル酸と長鎖アルキル基(例えばオクタデシル基、ヘキアデシル基、テトラデシル基)を有するアクリル酸エステルの共重合体を合成した。この際にゲルのモノマー組成比・橋かけ密度などを系統的に変えながら、購入予定の示差走査熱量測定装置(ポ-キンエルマ-製、DSC-7)を用いて、構造転移と力学特性の関係を明らかにした。また広角、小角X線回折装置により膨張状態での高分子ゲルの構造を乾燥状態と比較しながら調べ、膨張挙動と構造の関係、構造形成と網目の役割の関係を明らかにした。
ハイドロゲルに形状記憶作用があることを見い出したのは大きな発見であり、この成果をNature, Macromolecules等に発表することができた。今後はゲルの形状記憶特性について詳細に検討する予定である。

Report

(2 results)
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] J. P. Gong: "Electrical Conductance of Polyelectrolyte Gel" J. Phys. Chem. 101. 740-745 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] S. Y. Yu: "Formation of Soluble Complexes by Two-step Surfactant Bindings" Macromolecules. 29. 8021-8023 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] J. P. Gong: "A Comparative Study on the Cooperative Binding of Surfactants with Solubilized Polymers and Networks" Polymers for Advanced Technologies. 7. 797-804 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Kagami: "Shape Memory Behaviors of Crosslinked Copolymers Containing Stearyl Acrylate" Macromal. Rapid Commun. 17. 539-543 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] N. Isogai: "Thermo-Sensitive Polymer Gel by Reversible Surfactant Binding" Macromolecules. 29. 6803-6806 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] J. P. Gong: "Motion of Polymer Gels by Spreading Organic Fluid on water" J. Phy. Chem.100. 11092-11097 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Osada and A. Matsuda: "Shape-Memory Gel with Onden-Disorden Trausition" Nature. 376. 219 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] J P. Gong and Y. Osada: "Presence of Electrostatic Potential Wells in the Ionic Polymer Network" Jpn. Chem. Lett.6. 449-450 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Uchida, M. Kurosawa and Y. Osada: "Swelling Process and Orden-Disonder Transition of Hydrogel Containing Hydrophobic Ionizable Gvonps" Macromolecules. 28. 4583-4586 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K. Sawahata, J. P. Gong and Y. Osada: "Softand Wet Touch-sensing System Made of Hydrogel" Macvomol, Rapid Commun.16. 713-716 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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