Dilute solution viscosimetry of carboxylated acrylic lactices

Abstract

Measures the intrinsic viscosities, in acetone and tetrahydrofurane (THF) at different temperatures, of a terpolymer of methyl methacrylate, ethyl acrylate and methacrylic acid, prepared by semicontinuous emulsion polymerization (latex). Analyses data with the aid of the equations of Huggins, Kraemer, Martin, Schulz‐Blaschke and an equation recently suggested by Rao. Considers relationships between different parameters. By comparing uncleaned samples with samples purified by single precipitation or by dissolution and precipitation from THF, observes the effects of low‐molecular weight and water‐soluble on the intrinsic viscosities. Discusses solvent powers and effects of degree of purification and temperature on viscosity. Discusses polymer‐solvents interactions in terms of the acceptor/donor properties of the solvents. Concludes that purification of functionalized latices can lead to modifications of the original systems, through the elimination of different polymer chains.

Citation

Amalvy, J.I. (1997), "Dilute solution viscosimetry of carboxylated acrylic lactices", Pigment & Resin Technology, Vol. 26 No. 6, pp. 363-369. https://doi.org/10.1108/03699429710367798