Solvent size effect on the static and dynamic properties of polymer chains in athermal solvents
Solvent size effect on the static and dynamic properties of polymer chains in athermal solvents
复制标题
溶剂尺寸对非热溶剂中聚合物链静态和动态性能的影响
DOI:
10.1016/j.polymer.2009.09.010
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发表时间:
2009-10
期刊:
影响因子:
4.6
通讯作者:
An, Lijia
中科院分区:
文献类型:
--
作者:
Li, Hongfei;Fu, Cuiliu;Zhen, Tong;Sun, Zhaoyan;Ouyang, Wenze;An, Lijia
The static and dynamic properties of polymer chains in athermal solvents with different sizes are studied by molecular dynamics method. With increasing solvent size, the radius of gyration and the diffusion coefficient of the polymer decay fast until a critical solvent size is reached. For the polymer diffusion coefficients, this decay only depends on the solvent size; while for the radius of gyration of polymers, this decay depends on both solvent size and the length of the polymers. The increase of solvent size also makes the polymer tend to be thicker ellipsoid until a critical solvent size is reached. The static scaling exponent of the polymer also shows the solvent size dependence. Moreover, four regions are identified where the polymers show different dynamic behaviors according to the dynamic structure factors of the polymer.
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DOI:
10.1021/j100020a076
发表时间:
1995
期刊:
The Journal of Physical Chemistry
影响因子:
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作者:
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2000-08
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1996-08
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通讯作者:
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4.4
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S. F. Swallen;K. Weidemaier;M. Fayer