Surface thermomechanical and glass transition temperature measurements of polymeric solids

Tisato Kajiyama, Keiji Tanaka, Atsushi Takahara

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

The surface molecular motion of polymeric solids was investigated on the basis of scanning force microscopic and temperature-dependent X-ray photoelectron spectroscopic measurements. The surface of the monodisperse polystyrene films was in a glass-rubber transition state even at 293 K in the case of number-average molecular weight less than ca. 30k. The surface glass transition temperature, Tgs for the symmetric poly(styrene-block-methyl methacrylate) diblock copolymer films were much lower than those for the bulk samples. A remarkable depression of Tg at the air-polymer interface was explained by the surface localization of chain end groups.

元の言語英語
ページ(範囲)677-682
ページ数6
ジャーナルMacromolecular Symposia
118
DOI
出版物ステータス出版済み - 1 1 1997

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Temperature measurement
glass transition temperature
temperature measurement
polystyrene
Polystyrenes
Rubber
Photoelectrons
rubber
Block copolymers
Styrene
molecular weight
copolymers
Polymers
photoelectrons
Molecular weight
Scanning
X rays
Glass
scanning
Glass transition temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

これを引用

Surface thermomechanical and glass transition temperature measurements of polymeric solids. / Kajiyama, Tisato; Tanaka, Keiji; Takahara, Atsushi.

:: Macromolecular Symposia, 巻 118, 01.01.1997, p. 677-682.

研究成果: ジャーナルへの寄稿記事

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