Influence of Surfactant and Salt Concentration on the Rheological Properties of Three Different Microstructures of Associative Polyelectrolytes Obtained by Solution Polymerization

• 作者: Areli I. Velazquez-Garcia Claudia C. Rivera-Vallejo Enrique J. Jiménez-Regalado Gregorio Cadenas-Pliego
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: Polymerization ASSOCIATIVE POLYELECTROLYTE RHEOLOGY SURFACTANT and Salt Concentration
• 年，卷（期）: 2014,（14）
• 页码范围: 1387-1396
• 页数: 10页
• 分类号: O6

摘要

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.