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中文摘要：
采用基于格子模型的Monte Carlo模拟方法研究了在高分子基体中扩散的4种不同拓扑组合（环形或线形高分子链）体系中目标单链的静态和动态性质.结果表明,环形目标单链的性质受基体分子拓扑结构的影响大于线形目标单链;其中环/线这一拓扑组合中目标单链的扩散机理相比其本体已经发生了较大改变,链末端在其中起了重要作用.
英文摘要：
The properties of polymer fluids are closely related to the structure of polymer chains and their {dynamical} behavior.When a single polymer chain diffuses in a matrix,the properties of this single chain depend on the topology of the matrix very much.In this paper,using lattice Monte Carlo simulation method,the static and dynamical properties of the target single chain in polymer matrices were studied,and four types of topology combinations were investigated with increasing chain length of matrix.It is found that the target ring chain is more sensitive to the topology of matrix than that of linear chain,which implies that diffusion mechanism of a single ring chain in the linear matrix might be changed.
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