Journal
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
Volume 47, Issue 6, Pages 602-607Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10601321003742105
Keywords
Hydrophobically associating polyacrylamide; retention behavior; adsorption; porous media; polymer flooding
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Funding
- State Key Laboratory of Polymer Materials Engineering (Sichuan, China) [200604]
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The retention behavior of hydrophobically associative polyacrylamide (HAPAM) with homogeneous composition in porous media was investigated. The results showed that HAPAM could exhibit different retention behavior, compared to PAM due to the existence of hydrophobic association group in HAPAM molecular frame. The critical association concentration could also be reflected by the curves between HAPAM concentration and retention amount. The retention amount of HAPAM was higher than that of polyacrylamide (PAM) and was smaller than the absorption amount of HAPAM. The retention mechanism was mainly controlled by adsorption mechanism.
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