Monte Carlo Study of Relaxation Modes of a Single Polymer Chain

1997 ◽  
Vol 66 (6) ◽  
pp. 1631-1637 ◽  
Author(s):  
Sachiko Koseki ◽  
Hidetomo Hirao ◽  
Hiroshi Takano
2006 ◽  
Vol 125 (10) ◽  
pp. 104901 ◽  
Author(s):  
Piotr Romiszowski ◽  
Andrzej Sikorski

Polymer ◽  
2006 ◽  
Vol 47 (8) ◽  
pp. 2928-2932 ◽  
Author(s):  
Jianhua Huang ◽  
Zhaofeng Mao ◽  
Changji Qian

2003 ◽  
Vol 17 (22n24) ◽  
pp. 4267-4271 ◽  
Author(s):  
Meng-Bo Luo

The configurational and magnetic properties of magnetic polymers are investigated based on an Ising polymer chain model with nearest-neighbor spin-spin interaction on the simple cubic lattice. Dynamic Monte Carlo simulation shows that the model has spontaneous magnetization at low temperature, i.e. the mean-square magnetization <M2> approaches to 1 below the critical temperature Tc. Near Tc, a transition of chain spatial configuration from extended coil to compacted globule is found. A nonlinear magnetization - field curve is observed, in agreement with experimental findings for magnetic polymers.


2001 ◽  
Vol 17 (05) ◽  
pp. 422-426
Author(s):  
Luo Meng-Bo ◽  
◽  
Chen Ying-Cai ◽  
Huang Jian-Hua ◽  
Xu Jian-Min

2020 ◽  
Vol 34 (25) ◽  
pp. 2050271
Author(s):  
Kai-Li Xue ◽  
Yun-Feng Hu ◽  
Xu-Chen Yu ◽  
Ji-Xuan Hou

We present a simple model of ionomers, namely a single polymer chain in a series of fixed attractors. In analogy to ionized bead’s claws of surrounding chains, the set of attractors can affectively slow down the diffusion motion of the target chain. The monomer mean-square displacement of ionomers is studied by using Monte Carlo algorithm, and compared with the prediction of the sticky Rouse model. The diffusion motion properties of ionomers are explored in three aspects, including the chain length of the polymer, the depth of the potential well and the number of ionic groups. The results show that a plateau appears in the monomer diffusion function due to the attraction of the attractors to the claws. However, comparative theoretical predictions and simulation results show that there exists some discrepancy between them. Therefore, the relaxation time distribution of polymer chain motion is explored. The simulation results confirm that the association lifetime is decreasing exponentially, and the expected values of the association lifetime satisfy the Boltzmann distribution as shown by the results. These results perfectly explain the deviation between the simulation data and the theoretical results.


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