Preparation and evaluation of fluorinated hydrophobically associating polyacrylamide |
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| Authors: | Fan Li Yue Luo Pan Hu Gaoshen Su Miao Zheng |
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| Affiliation: | 1.Key Laboratory of Oil and Gas Drilling and Production Engineering, Petroleum Engineering College,Yangtze University,Jingzhou,People’s Republic of China;2.College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou,People’s Republic of China;3.Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology,China University of Geosciences,Beijing,People’s Republic of China;4.Heavy Oil Development Company, Xinjiang Oilfield Company,Petro China,Karamay,People’s Republic of China |
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| Abstract: | A twin-tailed fluorinated macro-monomer AMPD was prepared by dodecylamine, POSF and acryloyl chloride. Then the hydrophobically associating copolymers (PFPAM) were prepared by micellar copolymerization of acrylamide (AM) and AMPS with AMPD in an aqueous solution. The structure and composition of PFPAM were characterized by FT-IR, 1H-NMR, 19F-NMR and Tg. Macroscopic and microscopic self-assembly associative properties in solutions of PFPAM as well as the effects of salt on the associative behavior were studied via viscosimetry, SEM, surface tension and AFM. The results show that with the polymer concentration increase, the viscosity increased and the surface tension decreased, so as to the salt solution. The concentration corresponding to the onset of increase in the viscosity was close to the onset of decrease in the surface tension. That lead to the CAC values from viscosity measurements are mostly in accordance with the data obtained from surface tension measurements. |
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