...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Macromolecular theory and simulations >Hydrodynamic effects on the extension of stars and dendrimers in external fields
【24h】

Hydrodynamic effects on the extension of stars and dendrimers in external fields

机译：流体动力学对外场中恒星和树枝状分子扩展的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We assess the influence of hydrodynamic interactions on the extension of branched polymers subjected to external forces. We envisage that the macromolecules move under external applied fields, exemplified by mechanical or electrical micromanipulations. We focus our attention on the difference of the results obtained using the Rouse and the Zimm models, both of which represent an extreme situation, so that the realistic behavior is encompassed by the two models. We focus on the mean displacement of a specified monomer, an the shape which the macromolecule attains and on the structural average of the displacements involved. We discuss how these dynamic properties depend on the underlying topology such as the number of branches and their length for the stars and on the number of generations for the dendrimers. Interestingly, although there exist quantitative differences between the results of the Rouse and of the Zimm model, in both models there appear typical dynamical features which depend on the topology only. This: stresses the role of the structure on the dynamics and offers the possibility of tracking it under realistic, experimental conditions. [References: 78]
机译：我们评估了流体动力相互作用对支链聚合物在外力作用下延伸的影响。我们设想大分子在外部施加的场下移动，例如机械或电微操纵。我们将注意力集中在使用Rouse和Zimm模型获得的结果的差异上，这两种方法都代表一种极端情况，因此这两种模型都包含了现实的行为。我们关注于特定单体的平均位移，高分子所达到的形状以及所涉及位移的结构平均值。我们讨论了这些动态特性如何取决于基础拓扑，例如分支的数目及其在恒星中的长度，以及树状大分子的生成数。有趣的是，尽管Rouse和Zimm模型的结果之间存在定量差异，但在这两个模型中都出现了典型的动力学特征，这些特征仅取决于拓扑。这：强调了结构在动力学上的作用，并提供了在现实的实验条件下对其进行跟踪的可能性。 [参考：78]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号