首页> 外文期刊>The Journal of Chemical Physics >Reaching lrge lengths and long times in polymer dynamics simulations
【24h】

Reaching lrge lengths and long times in polymer dynamics simulations

机译:在聚合物动力学模拟中达到较大的长度和较长的时间

获取原文
获取原文并翻译 | 示例
           

摘要

A lattice modelis presented for the simulation of dynamics in polymeric systems.Each polymer is represented as a chain of monomers,residing on a sequence of nearest-neighbor site is visited by more than one polymer,nor revisited by the same polymer after leaving it.The dynamics occurs through single-monomer displacements over one lattice specing.To demonstrate the highcomputational efficiency of the model,we simulate a dense binary polymer mixture with repelling nearest-neighbor interactions between the two types of polymers,and observe the phase separation over a long period of time.The simulations consist of a total of 46080 polymers,100 monomers each,on a lattice with 13824000 sites,and an interaction strength of 0.1 k_BT.In the final two decades of time,the domain-growth is found to be d(t) approx t~1/3,as expected,since the lattice model shows the dynamical scaling of "Model B",once the domains are bigger than the radius of hyration.
机译:提出了一种用于模拟聚合物系统动力学的晶格模型。每种聚合物均表示为一连串的单体链,一个或多个相邻的聚合物访问了位于最近邻居位置的序列,离开该聚合物后也不会对其进行重新访问。动力学是通过在一个晶格上的单单体位移发生的。为了证明该模型的高计算效率,我们模拟了一种稠密的二元聚合物混合物,该混合物排斥两种类型的聚合物之间的最近邻相互作用,并观察了很长时间的相分离。该模拟由总共46080个聚合物,100个单体组成,在具有13824000个位点的晶格上,相互作用强度为0.1 k_BT。在最后二十年的时间里,发现域增长为d。 (t)大约t〜1/3,正如预期的那样,因为晶格模型显示了“模型B”的动态缩放,因此当域大于玻化半径时。

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