Salt concentration dependence of swelling states for poly(sulfobetaine) brush at aqueous solution interface

Yuki Terayama, Moriya Kikuchi, Koji Mitamura, Motoyasu Kobayashi, Norifumi L. Yamada, Atsushi Takahara

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

1 被引用数 (Scopus)

抄録

Swelling states of poly(3-(N-2-methacryloyloxyethyl-N,Ndimethyl) ammonatopropanesulfonate) (MAPS) brush in aqueous solutions were investigated by atomic force microscopy (AFM) and neutron reflectivity measurement. The thickness of swollen poly(MAPS) brush evaluated by AFM was increased from 61 to 87 nm with an increase in NaCl concentration from 0 to 0.05 M, and was dramatically increased up to 153 nm at 0.5 M NaCl aqueous solution. At low salt concentration, poly(MAPS) brush chains formed shrunk structure due to the inter-and intrachain attractive electrostatic interactions, while the brush chains stretched up with increasing salt concentration due to the screening effect by hydrated salt ions.

本文言語英語
ホスト出版物のタイトルAmphiphiles
ホスト出版物のサブタイトルMolecular Assembly and Applications
出版社American Chemical Society
ページ135-143
ページ数9
ISBN(印刷版)9780841226500
DOI
出版ステータス出版済み - 1 1 2011

出版物シリーズ

名前ACS Symposium Series
1070
ISSN(印刷版)0097-6156
ISSN(電子版)1947-5918

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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