Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响)
采用分子动力学(MD)方法研究了高分子单链受限在2块不可穿透的平行板之间且平行板内有均匀分布的障碍物时的扩散行为.模拟结果发现:分子链的链长N及障碍物间距d对高分子链扩散系数D影响很大.链越长(N越大),扩散越慢(D越小);同时障碍物间距d越小,扩散越慢(D越小).障碍物对高分子链的形状因子及链大小也有影响.障碍物间距d越小时,高分子链更接近棒状,链尺寸也较大.这些研究结果有助于全面了解高分子链在受限环境下的构象及动力学过程....
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Format: | Article |
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Zhejiang University Press
2011-09-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
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Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2011.05.008 |
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author | XULi-mei(徐李梅) HELin-li(何林李) CHENGJun(成军) |
author_facet | XULi-mei(徐李梅) HELin-li(何林李) CHENGJun(成军) |
author_sort | XULi-mei(徐李梅) |
collection | DOAJ |
description | 采用分子动力学(MD)方法研究了高分子单链受限在2块不可穿透的平行板之间且平行板内有均匀分布的障碍物时的扩散行为.模拟结果发现:分子链的链长N及障碍物间距d对高分子链扩散系数D影响很大.链越长(N越大),扩散越慢(D越小);同时障碍物间距d越小,扩散越慢(D越小).障碍物对高分子链的形状因子及链大小也有影响.障碍物间距d越小时,高分子链更接近棒状,链尺寸也较大.这些研究结果有助于全面了解高分子链在受限环境下的构象及动力学过程. |
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spelling | doaj.art-1c486f63ae6448a6a5bd9c61d446cbe22024-03-29T01:58:30ZzhoZhejiang University PressZhejiang Daxue xuebao. Lixue ban1008-94972011-09-0138551852110.3785/j.issn.1008-9497.2011.05.008Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响)XULi-mei(徐李梅)0HELin-li(何林李)1CHENGJun(成军)2 1. Department of Physics, Wenzhou University, Wenzhou 325007, Zhejiang Province, China( 1.温州大学 物理系,浙江 温州 325007) 1. Department of Physics, Wenzhou University, Wenzhou 325007, Zhejiang Province, China( 1.温州大学 物理系,浙江 温州 325007) 2. Jinhua College of Vocation and Technology, Jinhua 321000, Zhejiang Province, China( 2.金华职业技术学院,浙江 金华 321000)采用分子动力学(MD)方法研究了高分子单链受限在2块不可穿透的平行板之间且平行板内有均匀分布的障碍物时的扩散行为.模拟结果发现:分子链的链长N及障碍物间距d对高分子链扩散系数D影响很大.链越长(N越大),扩散越慢(D越小);同时障碍物间距d越小,扩散越慢(D越小).障碍物对高分子链的形状因子及链大小也有影响.障碍物间距d越小时,高分子链更接近棒状,链尺寸也较大.这些研究结果有助于全面了解高分子链在受限环境下的构象及动力学过程.https://doi.org/10.3785/j.issn.1008-9497.2011.05.008分子动力学方法障碍物扩散系数 |
spellingShingle | XULi-mei(徐李梅) HELin-li(何林李) CHENGJun(成军) Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) Zhejiang Daxue xuebao. Lixue ban 分子动力学方法 障碍物 扩散系数 |
title | Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) |
title_full | Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) |
title_fullStr | Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) |
title_full_unstemmed | Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) |
title_short | Effect of obstacles fixed in two parallel plates on the diffusion of polymer chain(平行板内障碍物对高分子链扩散的影响) |
title_sort | effect of obstacles fixed in two parallel plates on the diffusion of polymer chain 平行板内障碍物对高分子链扩散的影响 |
topic | 分子动力学方法 障碍物 扩散系数 |
url | https://doi.org/10.3785/j.issn.1008-9497.2011.05.008 |
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