Self-Assembly Systems Based on Betaine-Type Hydrophobic Association Polymer Used in Acid Stimulation: Effects of Surfactant and Salt Ion.

ABSTRACT: Hydrophobic association polymers containing various functional groups have a great deal of application potential as a self-thickening agent in carbonate acidification, while the improvement of their viscosification ability under high temperature conditions remains a significant challenge. A kind of betaine-type hydrophobic association polymer (PASD) intended for use as an acid thickener was synthesized through aqueous solution polymerization with sulfobetaine and a soluble hydrophobic monomer. The structure of PASD was characterized by FT-IR and ¹H NMR. It is found that during the acid-rock reaction, the physical cross-linking between PASD and cationic surfactants (STAC) occurs through noncovalent bonding forces such as micellar interaction and electrostatic interaction, forming

SUBMITTER: Hu Y 

PROVIDER: S-EPMC11635469 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature