阴离子型聚丙烯酰胺与阳离子表面活性剂的相互作用

Interaction of Anionic Polyacrylamide with Cationic Surfactants

采用自由基水溶液共聚法制备了带有负电荷的水溶性聚丙烯酰胺,研究了水溶液中聚合物与阳离子表面活性剂的相互作用及所导致的水溶性、黏度和流变学性质的变化,为进一步研究驱油提供了理论基础.

It is noteworthy that the hydrophobically associating acrylamide copolymer is a new class of water-soluble polymers, derived from polyacrylamide by introducing a relatively low amount of hydrophobic groups （generally less than 5%, molar fraction） in polymer hydrophilic macromolecule chains. Because of special pro-perties of temperature resistance, salt tolerance, resistance to shear and storage stability, the material has been widely used in industry. The water-soluble negatively charged polyacrylamide was prepared by free radi-cal copolymerization method. The interaction between cationic surfactants and polyacrylamide was researched in aqueous solution and NaCl solution including solubility, viscosity and rheological properties.