Citation: Xu Feng Zhang, Wen Hui Wu. Novel hydrophobically associative polyacrylamide with tunable viscosity[J]. Chinese Chemical Letters, ;2009, 20(11): 1361-1365. doi: 10.1016/j.cclet.2009.06.011 shu

Novel hydrophobically associative polyacrylamide with tunable viscosity

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

Received Date: 24 February 2009

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/CTAB 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.
- Hydrophobically associative polyacrylamide,
- Surface-active monomer,
- Mixed micelles,
- Hydrophobic association
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