Covalent Modification of Epoxy-Amine Systems with a Guanidine-Containing Oligomer to Enhance Their Activity against Pathogenic Microorganisms
| Autor: | I. P. Sedishev, M. S. Merkulova, I. N. Senchikhin, E. S. Zhavoronok, O. Ya. Uryupina |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Hydrochloride Salt (chemistry) 02 engineering and technology Epoxy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Combinatorial chemistry Oligomer 0104 chemical sciences Adduct chemistry.chemical_compound chemistry Covalent bond visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology Guanidine Macromolecule |
| Zdroj: | Polymer Science, Series B. 63:31-40 |
| ISSN: | 1555-6123 1560-0904 |
| DOI: | 10.1134/s1560090420060135 |
| Popis: | This paper addresses the modification of epoxy-amine systems with new reactive compounds, oligohexamethyleneguanidine salts. Using commercial hydrochloride of oligohexamethyleneguanidine, its hydrosalicylate, hydro-5-sulfosalicylate, and hydro-4-aminosalicylate are isolated and characterized. During salt preparation, the main macromolecular chain of oligohexamethyleneguanidine remains almost intact. The scheme advanced for the covalent introduction of a modifier in an epoxy-amine network involves the preliminary synthesis of the adduct of an epoxy oligomer and oligohexamethyleneguanidine salt followed by its cure with oligoamine. Conditions for formation of uncured viscous-flow adducts well miscible with the epoxy oligomer and the curing agent are determined. Using these adducts, the cured elastic films are obtained, among which samples modified with oligohexamethylene-guanidine hydro-4-aminosalicylate demonstrate the most pronounced activity against model microorganisms Mycobacterium smegmatis. These materials show promise as a basis for the development of biocidal coatings. |
| Databáze: | OpenAIRE |
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