Abstract
The hydrophobically associative polyacrylamide (HAPAM) with homogeneous composition was prepared in inverse microemulsion polymerization. The homogeneity was proved by polymerization kinetic. The critical association concentration (CAC) was measure by three methods: viscosity method, fluorescence method and micro-pore method. The results showed that the HAPAM still could exhibit hydrophobic association interaction in porous media under flowing condition. HAPAM could present adsorption of multi-layer due to the hydrophobic association interaction. It's the hydrophobic association interaction that made the adsorption behavior differ from neutral PAM.
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