TITLE:
Influence of Surfactant and Salt Concentration on the Rheological Properties of Three Different Microstructures of Associative Polyelectrolytes Obtained by Solution Polymerization
AUTHORS:
Areli I. Velazquez-Garcia, Gregorio Cadenas-Pliego, Claudia C. Rivera-Vallejo, Enrique J. Jiménez-Regalado
KEYWORDS:
Polymerization, Associative Polyelectrolyte, Rheology, Surfactant and Salt Concentration
JOURNAL NAME:
Journal of Modern Physics,
Vol.5 No.14,
August
29,
2014
ABSTRACT: The
rheological properties of three different microstructures of hydrophobically
modified alkalisoluble polymers (telechelic, multisticker and combined) in the
presence of various concentrations of anionic surfactant and salt (NaCl) were
investigated. Associative polymers containing both ionic sites and small number
of hydrophobic groups were obtained, and their thickening properties in aqueous
solutions, were investigated. Solution polymerization was used for obtaining
the different polymers. Relationships between hydrophobe, sodium dodecyl
sulfate (SDS) and NaCl concentration are proposed. Owing to the competition
between attractive hydrophobic interaction and repulsive electrostatic
interactions, such hydrophobically modified polymers exhibit various
rheological behaviors in aqueous solutions, depending on microstructure of
polyelectrolyte, SDS and NaCl concentrations.