Molecular weight dependence of surface dynamic viscoelastic properties for the monodisperse polystyrene film

Keiji Tanaka, Aki Taura, Shou Ren Ge, Atsushi Takahara, Tisato Kajiyama

研究成果: Contribution to journalArticle査読

181 被引用数 (Scopus)

抄録

The molecullar weight dependence of the surface viscoelasticity function for the monodisperse PS (polystyrene) films has been investigated on the basis of SVM (scanning viscoelasticity microscope) measurement. In the case of Mn < 26.6K, the film surface is found to be in a glass-rubber transition state or a rubbery state, even at 293K. A depression of the surface Tg compared with that of bulk samples is explained in the basis of the surface localization of chain end groups. SIMS measurements revealed that chain end groups are enriched in the depth range from the outermost surface to Rg.

本文言語英語
ページ(範囲)3040-3042
ページ数3
ジャーナルMacromolecules
29
8
DOI
出版ステータス出版済み - 4 8 1996

All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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