文献类型：期刊文献

英文题名：Viscosity of polyelectrolyte solutions: Experiment and a new model

作者：Yang, Jianyong[1]; Liu, Nan[1]; Yu, Dahong[1]; Peng, Changjun[1]; Liu, Honglai[1]; Hu, Ying[1]; Jiang, Jianwen[2]

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China;[3]Univ Delaware, Dept Chem Engn, Newark, DE 19716 USA

年份：2005

卷号：44

期号：21

起止页码：8120

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：2005459459409);WOS:【SCI-EXPANDED(收录号:WOS:000232410400025)】；

语种：英文

外文关键词：Concentration (process) - Polyacrylates - Salts - Sodium compounds - Solutions - Statistical mechanics - Viscosity of liquids

摘要：The viscosity of sodium polyacrylate (NaPAA) and poly(sodium 4-styrenesulfonate) (NaPSS) solutions was experimentally measured with various added salt (NaCl) concentrations at different temperatures. With a low salt concentration, the reduced specific viscosity (eta(rs)) exhibits a maximum and then a minimum with decreasing polyelectrolyte concentration (C-p) and diverges as C-p approaches zero. A new statistical mechanics model was developed based on the combination of Eyring's absolute-rate theory and Jiang's polyelectrolyte model. This model can satisfactorily correlate the viscosity of NaPAA and NaPSS solutions over the entire range of added NaCl concentration and temperature in this study and correctly predict the anomalous concentration-dependent behavior Of eta(rs).