Quantitative evaluation of nano-mechanical properties at polymer surfaces based on scanning viscoelasticity microscopy

Keiichi Akabori, Hiroki Murase, Keiji Tanaka, Atsushi Takahara, Tisato Kajiyama

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

抄録

A mechanical model analysis for scanning viscoelasticity microscopic (SVM) measurement under various conditions was carried out to quantitatively evaluate spring constants of polymer surfaces. Experiment was made at room temperature using polystyrene films with different molecular weights. When the sample surface was in a glassy state, that is, in an elastic regime, a series model composed of two springs with a cantilever and the sample surface could well express the SVM vibration system. In contrast, when the surface was in a viscoelastic regime, a viscous component must introduced into the model in order to analyze the experimental results. Based on fitting parameters for the analysis, the spring constants for the PS surfaces were successfully extracted. Consequently, the spring constants of the surfaces were lower than the bulk value by a few decades. Finally, it can be claimed that surface nano-mechanical properties are essentially different from the corresponding bulk ones.

本文言語英語
ホスト出版物のタイトル54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan
ページ3291-3292
ページ数2
54
2
出版ステータス出版済み - 2005
イベント54th SPSJ Symposium on Macromolecules - Yamagata, 日本
継続期間: 9 20 20059 22 2005

その他

その他54th SPSJ Symposium on Macromolecules
国/地域日本
CityYamagata
Period9/20/059/22/05

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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