Association and effective hydrodynamic thickness of hydrophobically associating polyacrylamide through porous media
Hongsheng Lu
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
College of Chemistry, Graduate University of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China
Search for more papers by this authorCorresponding Author
Yujun Feng
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China===Search for more papers by this authorZhiyu Huang
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
Search for more papers by this authorHongsheng Lu
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
College of Chemistry, Graduate University of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China
Search for more papers by this authorCorresponding Author
Yujun Feng
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, People's Republic of China===Search for more papers by this authorZhiyu Huang
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
Search for more papers by this authorAbstract
This study was aimed at the association and effective hydrodynamic thickness of hydrophobically associating polyacrylamide (HAPAM) through porous media with coreflow experiment. It shows that there is strong hydrophobic association for HAPAM in porous media but not for polyacrylamide (PAM). The resistance factor and effective hydrodynamic thickness of HAPAM are obviously superior to those of PAM. HAPAM exhibits much stronger shear thinning behavior than PAM due to the ability to form transitional network structure. It also indicates that PAM can exhibit a transition from shear thinning behavior to shear thickening behavior at low polymer concentration. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
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