高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (7): 1099.

• 研究快报 • 上一篇    下一篇

高分子熔体结晶的两维计算机模拟

胡文兵1, 于同隐1, 卜海山2   

  1. 1. 复旦大学高分子科学系, 上海, 200433;
    2. 复旦大学材料科学系, 上海, 200433
  • 收稿日期:1994-02-08 修回日期:1994-05-18 出版日期:1994-07-24 发布日期:1994-07-24
  • 通讯作者: 胡文兵,男,27岁,博士研究生.
  • 作者简介:胡文兵,男,27岁,博士研究生.

Two Dimensional Computer Simulation of Polymer Melts

HU Wen-Bing1, YU Tong-Yin1, BU Hai-Shan2   

  1. 1. Department of Polymer Science, Fudan University, Shanghai, 200433;
    2. Department of Material Science, Fudan University, Shanghai, 200433
  • Received:1994-02-08 Revised:1994-05-18 Online:1994-07-24 Published:1994-07-24

关键词: 计算机模拟, 有序相变, 高分子

Abstract: The computer simulation of polymer system with limited chain length and high density was performed on a square lattice in order to study the details of the disordered vs ordered states of bulk polymers as a function of chain flexibility and temperature.The static and dynamic properties of athermal chain systems are in agreement with polymer melts.Assuming an intramolecular energy Ec and an intermolecular energy Ep, we have simulated metastable nematic ordered state and lamellar ordered state by introducing Ep/Ec=0 and Ep/Ec=l respectively.The relation of these results to the real symmetrical polymers such aspolyethylene was discussed.Also, the trends of chain regular folding were observed in these metastable ordered states.

Key words: Computer simulation, Phase transition, Polymer

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