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Adsorption of Diblock Copolymers from Non-selective Solvent: Comparison Between Scheutjens
-Fleer Theory and Monte Carlo Simulation

GUO Lian; YE Ruqiang; YING Changming; LIU Honglai; HU Ying   

  1. Department of Chemistry, East China University of Science and Technology, Shanghai 200237,
    China
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-12-28 Published:2002-12-28
  • Contact: GUO Lian

非选择性溶剂中两嵌段共聚物的吸附及Scheutjens-Fleer理论与Monte Carlo模拟的比较

郭炼; 叶汝强; 应长明; 刘洪来; 胡英   

  1. Department of Chemistry, East China University of Science and Technology, Shanghai 200237,
    China
  • 通讯作者: 郭炼

Abstract: Systematic comparison between computer simulation results and those predicted by
Scheutjens-Fleer (SF) self-consistent-field theory is presented for the adsorption of
diblock copolymers from a non-selective solvent on attractive surface. It is shown that
although SF is a mean-field theory, it can qualitatively describe the adsorption phenomena
of diblock copolymers. However, systematic discrepancy between the theory and simulation
still exists. The approximations inherited in the mean-field theory such as random mixing
inside a layer and the allowance of direct back folding may be responsible to those
deviations.

Key words: Scheutjens-Fleer theory, diblock copolymer, surface adsorption, Monte Carlo simulation

摘要: Systematic comparison between computer simulation results and those predicted by
Scheutjens-Fleer (SF) self-consistent-field theory is presented for the adsorption of
diblock copolymers from a non-selective solvent on attractive surface. It is shown that
although SF is a mean-field theory, it can qualitatively describe the adsorption phenomena
of diblock copolymers. However, systematic discrepancy between the theory and simulation
still exists. The approximations inherited in the mean-field theory such as random mixing
inside a layer and the allowance of direct back folding may be responsible to those
deviations.

关键词: Scheutjens-Fleer theory;diblock copolymer;surface adsorption;Monte Carlo simulation