摘要
本文对常用的粘度法测定聚丙烯酰胺(PAM)分子量体系 PAM-1mol/L NaNO_3、PAM-0.1mol/L Na_2SO_4和 PAM-0.5 mol/NaCl的粘度进行了稳定性考察,并对上述体系加入少量不同种类的稳定剂,考察其粘度对时间的依赖性,确定了粘度法测定PAM分子量的适宜溶液体系.
The instability of viscosity of polyacrylamide(PAM) aqueous salt solutions which are used in the viscometric method for the determination of the molecular weight of PAM,PAM 1 mol/L NaNO3, PAM-0. 1 mol/L Na2SO4, and PAM-0. 5 mol/L NaCl, was examined. Some stabilizers were added in the solutions, and the dependence of viscosity on time was studied in order to find stable systems to determine the molecular weight of PAM.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1995年第9期1073-1076,共4页
Chinese Journal of Analytical Chemistry
关键词
聚丙烯酰胺
粘度依时性
稳定性
粘度法
Polyacrylamide, dependence of viscosity on time, stabilizer
