Journal
CHINESE CHEMICAL LETTERS
Volume 20, Issue 11, Pages 1361-1365Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2009.06.011
Keywords
Hydrophobically associative polyacrylamide; Surface-active monomer; Mixed micelles; Hydrophobic association
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Hydrophobically associative polyacrylamide (HAPAM) were prepared in aqueous solution by radical copolymerization of novel cationic surface-active monomer, dimethylhexadecyl(3-acrylamidopropyl)ammonium bromide (DMHAB), with acrylamide (AM) in the presence of DMHAB/CTA.B mixed micelles. The length of hydrophobic microblock (N-H) in HAPAM is controlled by the molar fraction of DMHAB in mixed micelles, which can be mediated by the ratio of CTAB to DMHAB. The results of steady-state fluorescence probe and viscometry experiments showed the ability of HAPAM association was determined by the length of the hydrophobic microblock. HAPAM with tunable association ability are promising materials for thickening agent. (C) 2009 Wen Hui Wu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
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