物理化学学报 >> 1995, Vol. 11 >> Issue (04): 289-291.doi: 10.3866/PKU.WHXB19950401

通讯    下一篇

离聚体溶液粘度方程

曾兆年,冯克,李卓美   

  1. 中山大学高分子研究所|广州 510275
  • 收稿日期:1994-11-28 修回日期:1995-01-09 发布日期:1995-04-15
  • 通讯作者: 曾兆年

Viscosity Equation for Ionomer Solution

Zeng Zhao-Nian, Feng Ke, Li Zhuo-Mei   

  1. Institute of Polymer Science,Zhongshan University,Guangzhou 510275
  • Received:1994-11-28 Revised:1995-01-09 Published:1995-04-15
  • Contact: Zeng Zhao-Nian

关键词: 离聚体, 溶液, 聚集, 粘性行为

Abstract:

Huggins equation has been found not suitable for the ionomer solution because of the aggregation of polymer chains. In this paper a viscosity equation for describing the viscometric behavior of ionomer solution is proposed as follows:
ηsp/c = A•exp(κcγ)
where A, κ and γ are adjustable parameters. Two kinds of zinc sulfonated butyl rubber (Zn-SIIR) ionomers with different molecular weight ([η]=0.65 and 1.47dL•g-1, xylene, 25 ℃) have been synthesized. Viscosity measurements for the ionomers in xylene containing various amount of hexanol (0~0.2mol•L-1) as cosolvent have been done. It has been found that ln(ηsp/c) increases linerly whit cγ for all plots and the liner correlative (R)are all higher than 0.999, indicating that viscosity concentration relationship for these ionomer solutions is in accordance with the viscosity equation mentioned above. The value of γ increases as hexanol content decreases. Science lower hexanol content leads to higher degree of aggregation of polymer chains, it is suggested that γ was related to the aggregation of polymer chains.

Key words: IonomerSolution, Aggregation, Viscometric behavior