物理化学学报 >> 1993, Vol. 9 >> Issue (02): 224-228.doi: 10.3866/PKU.WHXB19930215

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SEP嵌段共聚物胶束化过程中溶液的粘度行为

周伟平; 贺智端; 张浩; 张海波   

  1. 中国科学院长春应用化学研究所，高分子物理开放实验室，长春 130022
  • 收稿日期:1991-09-13 修回日期:1992-07-29 发布日期:1993-04-15
  • 通讯作者: 周伟平

The Viscosity Behaviour of SEP Block Copolymer Solution During its Micellization

Zhou Wei-Ping; He Zhi-Duan; Zhang Hao; Zhang Hai-Bo   

  1. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-09-13 Revised:1992-07-29 Published:1993-04-15
  • Contact: Zhou Wei-Ping

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摘要： 用粘度法主要研究了聚苯乙烯和氢化异戊二烯二嵌段共聚物在选择性溶剂中的粘度行为, 并计算得到其流体力学半径. 测得在胶束化过程中溶液粘度出现异常变化, 溶液在胶束化时粘度迅速增大, 并与用光散射法研究共聚物溶液胶束化过程得封的结果相比较.

关键词: 共聚物, 溶液, 胶束, 粘度

Abstract: The viscosities of polystyrene-b-poly (ethylene/propylene) diblock copolymer in mixed solvent of n-octane and benzene were measured. The influences of the constitution of the mixed solvent, temperature and concentration were on the viscosity investigated. During the micellization the solution viscosity increases rapidly. The results are consistent with the study on the micellization by light scattering. The average mass of micelleswas measurod and the hydrodynamic radius of gyrations were calculated.

Key words: Copolymer, Solution, Micelle, Viscosity