物理化学学报 >> 1992, Vol. 8 >> Issue (02): 197-201.doi: 10.3866/PKU.WHXB19920211

研究论文 上一篇    下一篇

基团贡献法研究环型聚苯乙烯稀溶液流体力学参数

黄家贤; 李春荣; 朱端慧; 刘东舟; 冯亚凯; 王志军   

  1. 南开大学化学系，天津 300071
  • 收稿日期:1990-10-19 修回日期:1991-04-20 发布日期:1992-04-15
  • 通讯作者: 黄家贤

Study on Hydrodynamic Parameters of Ring-Shaped Polystyrene in Dilute Solution by the Method of Group Contributions

Huang Jia-Xian; Li Chun-Rong; Zhu Duan-Hui; Liu Dong-Zhou; Feng Ya-Kai; Wang Zhi-Jun   

  1. Department of Chemistry, Nankai University, Tianjin 300071
  • Received:1990-10-19 Revised:1991-04-20 Published:1992-04-15
  • Contact: Huang Jia-Xian

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摘要： 首次采用基团贡献法, 根据内聚能、摩尔体积、摩尔吸引常数和临界特性粘数等分别计算并通过实验数据验证了环型和线型聚苯乙烯的溶度参数, 特性粘数、摩尔极限粘数函数、临界分子量和Mark-Houwink参数, 详细地讨论了计算大环高分子的K_(θ,r)值所取用的临界分子量应具有的理论意义。

关键词: 基团贡献, 溶度参数, 临界特性粘度, 摩尔极限粘数函数, 临界分子量, 流体力学参数

Abstract: The group contribution mothod has been used to calculate the values of solubility parameter, intrinsic viscosity, Mark-Houwink parameters of ring-and linear shaped polystyrene according to cohesive energy, molar volume, molar attraction constant. All these calculating results were also experimentally demonstrated. Futhermore, the theoretical significance of the value of critical molecular weight used calculating the K_(θ,r) of ring-shaped polymer is detaily discussed.

Key words: Group contribution, Solubility parameter, Critical intrinsic viscosity, Molar limitting viscosity number function, Critical molecular weight, Hydrodynamic parameter