Monte Carlo Simulations of Adsorption of Diblock Copolymers on Solid-liquid Interface (Ⅱ)──The Segment Concentration Profile and Adsorption Amount

Abstract

Abstract: Monte Carlo simulation method was used to simulate the adsorption of diblock copolymers on solid-liquid interface.The adsorption information, such as total segment density and segment concentration profiles, bound fraction, surface coverage and adsorption amount, are obtained.The effect of attractive segment content f and its adsorption energy was inspected.It is shown that the adsorption amount increases with increasing f when adsorption energy is relatively small.However, if adsorption energy have a larger value, the adsorption amount increases with increasing f at first and reaches a maximum about f=0.5,then decreases with increasing f.This trend coincides well with the experimental results of Tiberg et al.

Key words: Diblock copolymers, Adsorption, Monte Carlo simulation, Lattice model.Solid-liquid interface

CLC Number:

O647.314

TrendMD:

CHEN Ting, LIU Hong-Lai, HU Ying. Monte Carlo Simulations of Adsorption of Diblock Copolymers on Solid-liquid Interface (Ⅱ)──The Segment Concentration Profile and Adsorption Amount[J]. Chem. J. Chinese Universities, 1999, 20(9): 1470.

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Monte Carlo Simulations of Adsorption of Diblock Copolymers on Solid-liquid Interface (Ⅱ)──The Segment Concentration Profile and Adsorption Amount

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