Interfacial dynamics of poly(methyl methacrylate) in water

Ayanobu Horinouchi, Yoshihisa Fujii, Keiji Tanaka

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Aggregation states of polymers at the surface 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 examine the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to extract the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain portion as well as the side chains. Hence, the dynamics observed here might reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

本文言語英語
ホスト出版物のタイトル4th International Symposium on Slow Dynamics in Complex Systems
ホスト出版物のサブタイトルKeep Going Tohoku
ページ459-461
ページ数3
DOI
出版ステータス出版済み - 3 12 2013
イベント4th International Symposium on Slow Dynamics in Complex Systems: Keep Going Tohoku - Sendai, 日本
継続期間: 12 2 201212 7 2012

出版物シリーズ

名前AIP Conference Proceedings
1518
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他4th International Symposium on Slow Dynamics in Complex Systems: Keep Going Tohoku
Country日本
CitySendai
Period12/2/1212/7/12

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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