A Monte Carlo Simulation on Shape of Grafted Polymer Chains

Abstract

Abstract: The shape of polymer chain on a simple cubic and a tetrahedral lattice, with one end absorbed by an impermeable wall, was studied with Monte Carlo technique. The results show that the shape of grafted polymer chains is more deviated from sphere than that of free ones. The limit value of 〈 L₁²〉∶〈 L₂²〉∶〈 L₃²〉 of grafted polymer chains is about 1∶2.75∶12.5; the values of 〈 L₂²〉/〈 L₁²〉 and 〈 L₃²〉/〈 L₁²〉 of grafted polymer chains are bigger than those of free ones, they decrease with the increase of chain length. It is found that the deviation of 〈 L₂²〉/〈 L₁²〉 and 〈 L₃²〉/〈 L₁²〉 of grafted polymer chains from those of free ones depends on chain′s lattice model.

Key words: Polymer chain, Shape, Monte Carlo simulation

CLC Number:

O631

TrendMD:

HUANG Jian-Hua, JIANG Wen-Hua, HAN Shi-Jun  . A Monte Carlo Simulation on Shape of Grafted Polymer Chains[J]. Chem. J. Chinese Universities, 2000, 21(4): 629.

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A Monte Carlo Simulation on Shape of Grafted Polymer Chains

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