Department of Physics, Institute of Fundamental Physics, Sejong University, Seoul 143-743, Republic of Korea.
J Chem Phys. 2010 Oct 28;133(16):164901. doi: 10.1063/1.3499743.
The relaxation of single grafted semiflexible chains freely rotating around the grafting point is investigated by means of two dimensional computer simulations and scaling arguments. Both free chains and chains surrounded by topological obstacles are considered. We compute the autocorrelation of the end-to-end vector for the whole chain and for terminal sections of various lengths. Our results are relevant for the relaxation of star polymers with stiff arms or branched semiflexible polymers moving in an array of obstacles.
通过二维计算机模拟和标度分析研究了单链在自由旋转状态下的弛豫过程。我们考虑了自由链和被拓扑障碍物包围的链。我们计算了整个链和不同长度的链末端部分的端到端向量自相关函数。我们的结果与具有刚性臂的星形聚合物或在障碍物阵列中移动的支化半柔性聚合物的松弛有关。
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