水溶性共轭聚合物PPEASO3分子量的粘度法估测  

Estimation of Molecular Weight of the Water-Soluble Conjugated Polymer PPEASO3 Using Viscosity Method

作　　者：孙礼林[1] 张萍[1] 郝丹[2] 张靖[2] 沈伟丽[1] 李鸣凤[3] 

机构地区：[1]安徽师范大学化学与材料科学学院,安徽芜湖241000 [2]安徽蒙城第一中学,安徽蒙城233500 [3]如皋高等师范学校,江苏如皋226500

出　　处：《安徽师范大学学报（自然科学版）》2013年第3期249-253,258,共6页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金(20875003)

摘　　要：利用稀溶液粘度法对所合成的水溶性共轭聚合物PPEASO3的分子量进行了估测.先通过含0.1M NaNO3的PPEASO3水溶液的粘度测量数据求出其特性粘数[η],再利用Mark-Houwink方程[η]=KMαη和有关文献中的三种参考聚合物的K、α值计算得到聚合物的粘均分子量Mη,最后取其平均值得到PPEASO3的粘均分子量为Mη≈150KD.In this paper, molecular weight of the water-soluble conjugated polymer PPEASO3 was estimated by means of viscosity method of dilute solution. The experimentally obtained value of [η] for PPEASO3 in 0.1M NaNO3 aqueous solution has been used to compute the polymer, s Mη value by use of the Mark-Houwink relation （[ η] = KMηa） and the values of K and a obtained from the literature for three different reference polyelectrolytes. The mean value of the calculation results suggest that for this polymer viscosity average molecular weight Mη≈150KD.

关 键 词：水溶性共轭聚合物 粘均分子量 稀溶液粘度法 

分 类 号：O632[理学—高分子化学]