2016 (1) 4

https://doi.org/10.15407/polymerj.38.01.034

Polyelectrolyte complexes based on pectin and poly(4-vinylpyridine): structure and thermomechanical properties

V.L. Demchenko

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2016, 38, no. 1: 34-39.

Section: Structure and properties.

Language: Ukrainian.

Abstract:

Methods of IR spectroscopy, X-ray analysis and thermomechanical analysis were used for the identification and for investigation of the structural organization and thermomechanical properties of polyelectrolyte complexes derived from the strong polyelectrolyte – sodium salt of pectin (Na-pectin), and the hydrochloride of poly (4-vinylpyridine) (P4VP-Cl) taken at different molar ratio. It is shown that the structure of the polyelectrolyte complexes is different from the structure of pure pectin polyelectrolytes, and of poly(4-vinylpyridine) due to the formation of interpolymer ionic groups, and respectively due to the cooperative electrostatic interaction between the anionic and cationic polyelectrolytes. It is found that the maximum change in structural organization and thermomechanical behavior of the polyelectrolyte complexes is reached at the molar ratio of pectin and poly(4-vinylpyridine) equal to 1:1.

Key words: pectin, poly(4-vinylpyridine), polyelectrolyte complexes, structure, properties.

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