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Study of the Compatibility of Polymer Chains in the Two Dimensions

Research Project

Project/Area Number 63550664
Research Category

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

Allocation TypeSingle-year Grants
Research Field 高分子物性
Research InstitutionMie University

Principal Investigator

KAWAGUCHI Masami  Mie University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30093123)

Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1989: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1988: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsPolymers in Two Dimensions / Compatibility / Surface Pressure / Ellipsometry / Thickness of Adsorbed Layer / Mixed Polymer Films / Air-Water Interface / エリプソメーター
Research Abstract

We have studied the structures and compatibility of binary mixed polymer chains spread at the air/water interface using the techniques of surface pressure measurements and ellipsometry. We chose four different polymers such as poly (ethylene oxide)(PEO), poly (methyl acrylate) (PMA), poly (vinyl acetate) (PVAc), and poly (methyl methacrylate) (P-MMA). All polymers lead to a stable film spread at the air-water interface.
1. From the plots of the experimental mean area of the mixed polymer films at a constant surface pressure as a function of the mole fraction of one component in the films, PEO/PMMA mixtures and PMA/PVAc mixtures are compatible in their entire composition. For PVAc/PEO mixtures, they are compatible below the collapse surface pressure of PEO. In PVAc/PMMA mixtures, the mixtures are thermodynamically unstable and should not be compatible. These results correlate well with the compatibility of the corresponding mixtures in the bulk state.
2. Ellipsometry showed that the thickness of the PEO/PMMA mixture layer adsorbed on the air-water interface at the high surface concentration does not exceed 2.5 nm, independent of composition in the mixtures. This thin layer thickness seems to be governed by the flat conformation of the individual film for PEO and PMMA. On the other hand, the thickness of the adsorbed layer for the PMA/PVA mixtures gives an increase with the surface concentration and reaches a plateau value. The plateau thickness attains to 15nm and its value is almost the same as the pure PVAc thickness.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 川口正美: "Ellipsometric Study of Polymer Monolayers Spread at the Air-Water Interface,1.Thickness of Monolayers" Langmuir. 4. 407-410 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 川口正美: "Ellipsometric Study of Polymer Monolayers Spread at the Air-Water Interface,2.Adsorbed Amount of Polymers" Langmuir. 4. 411-413 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 川口正美: "Compatibility of Polymer Chains at the Air/Water Interface" Langmuir.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 永田勝敏: "Ellipsometric Study of Binary Mixed Films of Poly(ethylene oxide) and Poly(methyl methacrylate)at the Air/Water Interface" Macromolecules.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Masami Kawaguchi, Masahiro Tohyama, Yuhji Mutoh, and Akira Takahashi: "Ellipsometric study of Polymer Monolayers Spread at the Air-water Interface. 1. Thickness of Monolayers." Langmuir, 4, 407-410 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Masami Kawaguchi, Masahiro Tohyama, and Akira Takahashi: "Ellipsometric Study of Polymer Monolayers Spread at the Air-Water Interface. 2. Adsorbed Amount of Polymers." Langmuir, 4, 411-413 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Masami Kawaguchi and Ryuji Nishida: "Compatibility of Polymer Chains at the Air/Water Interface." Langmuir.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Katsutoshi Nagata and Masami Kawaguchi: "Ellipsometric Study of Binary Mixed Films of Poly(ethylene oxide) and Poly (methyl methacrylate) at the Air/Water Interface." Macromolecules.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 川口正美: "Compatibility of Polymer Chains a,t the Airl Water Interface" Langmuir.

    • Related Report
      1989 Annual Research Report
  • [Publications] 永田勝敏: "Ellipsometric Study of Binary Mixed Films of Poly(ethylene oxide)and Poly(methyl methacrylate)at the Air/Water Interface" Macromolecules.

    • Related Report
      1989 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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