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STUDIES ON THE CONTROL OF MICRO-STRUCTURE OF POLYMER BLEND FILM FORMED BY SPINODAL DECOMPOSITION AND THE FUNCTION OF SEPARATION OF THE FILM

Research Project

Project/Area Number 03650771
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 化学工学
Research InstitutionKYOTO INSTITUTE OF TECHNOLOGY

Principal Investigator

MIYAKE Yoshikazu  KYOTO INSTITUTE OF TECHNOLOGY, ASSOCIATE PROFESSOR, 工芸学部, 助教授 (70111995)

Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsSpinodal decomposition / Phase separation / bi-continuous structure / polymer blend film / casting method / pervaporation method / light scattering / lower critical solution temperature / スケーリング則 / ハーベーパレーション法 / キャスト膜 / スピノ-ダル分解 / 動的スケ-リング則
Research Abstract

The phase separation process of the spinodal decomposition induced by the temperature of the polymer blend(PMMA/PVAc) possessing a upper critical solution temperature was measured by a light scattering method. Effects of the temperature and component of polymer on the periodic distance and the process of phase separation were studied. Initial stage of the phase separation can be interpreted by the linear theory of spinodal decomposition. Late stage of the phase separation can be correlated by the scaling theory.
In the casting process the phase separation induced by the concentration change of the polymer was measured by the light scattering method. The bicontinuous structure in the casting film was formed by the spinodal decomposition The periodic distance was dependent on the evaporation rate and polymer quantity. The periodic distance can be quantitatively correlated by the lapse of the phase separation process. The process can be simulated by the diffusion equation described the phase separation.
The polymer blend film possessing the separation function was prepared by the casting method. The periodic distance can be controlled by the evaporation rate. The separation of ethanol and water with this blend film was studied by the pervaporation method. The flux and separation factor can be correlated by the structure of the blend film.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 三宅 義和: "スピノーダル分解による高分子ブレンド膜の相分離構造と分離特性" 膜(膜シンポジウム'92). 33-36 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 関口 泰広: "キャスト成膜におけるポリマ-ブレンドの相分離構造形成過程" 第5回エラストマ-討論会講演要旨集. 47-50 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 三宅 義和: "ポリマ-ブレンドのキャスト成膜時にみられるスピノ-ダル分解による相分離構造" 化学工学会第57年会 研究発表講演要旨集. 第2分冊. 16 (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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