Dynamic core - Shell structures in two-state models of neutral water-soluble polymers

N. Yoshinaga, D. J. Bicout, E. I. Kats, A. Halperin

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Monte Carlo simulation of annealed copolymers of solvophobic/solvophilic monomers show collapsed globular states having dynamic core-shell structures. In these, the core is mostly solvophobic while the core boundary contains an excess of solvophilic monomers. This two-state model, where each monomer undergoes interconversion between solvophobic and solvophilic state, is a minimal version of models of neutral water-soluble polymers such as PEO. The reduced surface tension of such core-shell structures suggests an explanation of the stability of PNIPAM globules as observed in the experiments of Wang et al. [Wang, X.; Qiu, X.; Wu, C. Macromolecules 1998, 31, 2972]. The statistics of the monomeric states along the chain vary with the degree of chain swelling. They are differ from those of quenched copolymers designed to create water-soluble globules though both systems involve a core-shell structure.

本文言語English
ページ(範囲)2201-2209
ページ数9
ジャーナルMacromolecules
40
6
DOI
出版ステータスPublished - 2007 3 20
外部発表はい

ASJC Scopus subject areas

  • 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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