Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films

Ayanobu Horinouchi, Hironori Atarashi, Yoshihisa Fujii, Keiji Tanaka

研究成果: ジャーナルへの寄稿記事

52 引用 (Scopus)

抜粋

At the outermost surface, aggregation states of polymers generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to study the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to determine the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, the sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain part as well as the side chains. Hence, the dynamics observed here may reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

元の言語英語
ページ(範囲)4638-4642
ページ数5
ジャーナルMacromolecules
45
発行部数11
DOI
出版物ステータス出版済み - 6 12 2012

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All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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