Abstract
Using commercial oligohexamethyleneguanidine hydrochloride, oligohexamethyleneguanidine hydrosalicylate having a higher solubility in epoxy resins is synthesized. On its basis, covalent adducts with epoxy resins are obtained in the medium of dimethyl sulfoxide. The kinetics of synthesis of these adducts and the stoichiometric ratio of oligohexamethyleneguanidine and an epoxy oligomer are studied by refractometry. Adducts are cured using oligomeric amine with allowance for the real content of epoxy groups. As a result, free elastic films having the glass transition temperature below room temperature are obtained. The activity of the modified films against gram-positive and gram-negative microorganisms is revealed. This indicates that the studied composites show promise for creating bactericidal coverings.
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ACKNOWLEDGMENTS
We are grateful to E.O. Kosakovich (MIREA) for her assistance in experiments.
A part of the experimental work was conducted using equipment of the Center for Collective Use of Physical Research Methods, Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences.
Funding
This work was supported by the Russian Foundation for Basic Research (project 18-08-01252А).
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Translated by T. Soboleva
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Zhavoronok, E.S., Sedishev, I.P., Safonov, A.V. et al. Adducts of Epoxy Resins with Oligohexamethyleneguanidine and Their Based Modified Epoxy-Amine Films. Polym. Sci. Ser. A 61, 610–618 (2019). https://doi.org/10.1134/S0965545X19050213
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DOI: https://doi.org/10.1134/S0965545X19050213