【摘要】 在研究壳聚糖醋酸水溶液粘度行为的实验基础上,研究了前人提出的描述聚电解质溶液粘度与浓度经验关系的适用性,并且提出了一套较为合理的常数确定方法。同时提出了一个新的经验式,该经验式不仅浓度适用范围较宽,而且能适用于其他类型的聚电解质溶液体系。文中还讨论了柔性链聚电解质溶液粘度行为与刚性链聚电解质溶液粘度行为的差别以及产生这种差别的原因。更多还原

【Abstract】 The viscometric behaviours of a polyelectrolyte solution, an aqueous solution of chitosan-HAC, in the absence of added salts have been studied and then a new empirical formula expressing the relationship between reduced viscosity and concentration of the polyelectrolyte solution is proposed as follows SP/C=D+A/( 1 +BC+HC2)As the equation was applied to the aqueous solution of chitosan-HAc and the sul-fonated polysulfone-DMF solution, the results obtained proved to be satisfactory.The different viscometric behaviours of the polyelectrolytes with rigid and flexible chain were also discussed in the paper.更多还原