Abstract
Fractions of the copolymer of N-methyl-N-vinylacetamide and N-methyl-N-vinylamine hydrochloride containing 15.7 ± 0.5% of charged units are obtained by radical polymerization, fractionation, and hydrolysis. Viscous flow, velocity sedimentation, and translational diffusion of their dilute solutions are studied in 0.2 M NaCl. Viscosimetric studies are also carried out in a wide range of ionic forces: from the minimum (~10–6 mol/L) to the maximum (6 mol/L). The hydrodynamic volumes and equilibrium rigidity of the copolymer under study are compared with the data obtained earlier for an uncharged homopolymer and a copolymer with a higher linear charge density (~44% of charged units) in solutions with different ionic strength. The correspondence of the values obtained to the theories of Odijk, Skolnik, and Fixman (OSF) as well as Dobrynin is discussed.
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Original Russian Text © O.A. Dommes, O.V. Okatova, A.A. Kostina, I.I. Gavrilova, E.F. Panarin, G.M. Pavlov, 2017, published in Vysokomolekulyarnye Soedineniya, Seriya C, 2017, Vol. 59, No. 1, pp. 131–139.
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Dommes, O.A., Okatova, O.V., Kostina, A.A. et al. Dimensions and conformations of macromolecules of N-methyl-N-vinylacetamide and N-methyl-N-vinylamine hydrochloride in solutions in a wide interval of ionic strength. Polym. Sci. Ser. C 59, 125–132 (2017). https://doi.org/10.1134/S1811238217010039
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DOI: https://doi.org/10.1134/S1811238217010039