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Citation: GENG Tong-Mou, WU Wen-Hui, WANG Jian-Quan, CHEN Ying, LI Jun. Aqueous Solution Viscosity of Hydrophobically Associating Twin-Tailed Acrylamido Terpolymers[J]. Chinese Journal of Applied Chemistry, ;2004, 21(4): 405-409. shu

Aqueous Solution Viscosity of Hydrophobically Associating Twin-Tailed Acrylamido Terpolymers

1.
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081

Corresponding author: WU Wen-Hui,
Received Date: 20 June 2003
Available Online: 1 September 2003

A series of hydrophobically associating twin-tailed water-soluble terpolymers poly(acrylamide/sodium acrylate/dihexylacrylamide)[P(AM/NaAA/DiC₆AM)] were synthesized by radical micellar copolymerization. Their apparent viscosities were found to be increased and their critical associating concentrations decreased dramatically in the presence of sodium dodecyl sulfate (SDS). The effects of the surfactant to hydrophobic monomer molar ratio[n(SDS)/n (hydrophobic monomer)], the hydrophobic momomer content, temperature and shear rate on aqueous solution viscosity of the unpurified terpolymers have been investigated. The apparent viscosities of the unpurified terpolymers were decreased with the increase in n(SDS)/n(hydrophobic monomer), temperature and shear rate; but increased firstly and then decreased with increase in the hydrophobic momomer content. The terpolymers showed a superior dissolution property when the hydrophobic momomer contents are from 0.125% to 0.375%, n(SDS)/n(hydrophobic monomer)are from 10% to 20%.
- twin-tailed,
- water-soluble terpolymers,
- sodium dodecyl sulfate,
- hydrophobic association,
- viscosity
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