Sуnthesis of terpene–methacrylic acid copolymers and their effect on the stability of inorganic dispersions in the presence of cationic surfactants

Copolymers of methacrylic acid and natural terpene monomers (α-pinene; β-pinene; ∆3-karene) with the molecular weight (0.3–0.5)∙104 a content carboxyl groups 14.5–16.3 % were synthesized. For synthesized copolymers, hydrodynamic radius Kuhn segment, which characterizes flexibility polymer chain, determined, as well Huggins constant in aqueous saline solutions, concentration regions for formation supramolecular structures. In presence cationic surfactant (benzetonium chloride, Hyamine), depending on copolymers system, polymer-surfactant complexes formed soluble insoluble forms. It has been shown that effectiveness stabilizing action respect to an dispersion calcium carbonate increases increase nonpolar chain. A (Hyamine) proposed precipitant method quantitative determination carboxyl-containing polymers media.