Ontology type: schema:ScholarlyArticle
2012-11
AUTHORSN. P. Yevlampieva, O. V. Nazarova, A. P. Khurchak, E. I. Ryumtsev, E. F. Panarin
ABSTRACTSix samples of poly(2-deoxy-2-methacryloylamino-D-glucose) were prepared by free-radical polymerization of the monomer. The molecular properties of the homologous series obtained were studied in three solvents, 0.2 M NaCl, 0.1 M Na2SO4, and salt-free water, by viscometry and static and dynamic light scattering. The Mark-Kuhn-Houwink relationships were obtained. The poly(vinyl saccharide) studied, despite the presence of bulky pendant substituents, is a typical flexible-chain polymer with the Kuhn segment length of 20 ± 3 Å. In aqueous salt systems, poly(2-deoxy-2-methacryloylamino-D-glucose), which is not a polyelectrolyte, nevertheless demonstrates the dependence of the hydrodynamic size of the molecules on the solvent composition. The SO42− ions make the polymer molecules more compact, whereas Cl− ions present in aqueous solution lead to its expanding. Salt additions affect the thermodynamic quality of the polymer-solvent system. More... »
PAGES1732-1739
http://scigraph.springernature.com/pub.10.1134/s1070427212110171
DOIhttp://dx.doi.org/10.1134/s1070427212110171
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