MORPHOLOGY AND ANTIMICROBIAL PROPERTIES OF THE COMPOSITIONS OF POLYVINYL BUTYRAL AND ETHYLENE PROPYLENE RUBBER WITH AROMATIC ALCOHOLS

Q4 Biochemistry, Genetics and Molecular Biology Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine Pub Date : 2022-01-01 DOI:10.21687/0233-528x-2022-56-3-54-60

E. Deshevaya, M. V. Gusarov, V. Tverskoy

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Abstract

We carried out testing of film-formation and antimicrobial properties of polymer/aromatic alcohol (AA) compositions. The compositions consisted of AA (phenol, resorcin, pyrocatechol, p-methoxyphenol or 4-hydroxybenzoic acid) with polar hydrophilic polyvinyl butyral (PVB) or nonpolar hydrophobic ethylene propylene rubber (SKEP). The polymers and AAs were tested for solubility in various solvents in order to choose those that would be suitable for preparation of simultaneous polymer/AA solutions and ensuing films. Differential scanning calorimetry and IR spectroscopy were used to determine morphology and structure of SKEP/AA and PVB/AA compositions. Since SKEP does not blend with AAs, these compositions are two-phase systems. In contrast, PVB/AA compositions represent monophase systems. PVB compatibility with AAs is explained by establishment of hydrogen bonds. Both types of composition exhibit film-forming properties. SKEP/AA films are characterized by low rigidity, whereas PVB/AA films demonstrate high rigidity. Both types of composition inhibit growth of mold fungi.

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聚乙烯醇-丁醛和乙丙橡胶组合物的形态和抗菌性能

我们对聚合物/芳香醇(AA)组合物的成膜性能和抗菌性能进行了测试。该组合物由AA(苯酚、间苯二酚、邻苯二酚、对甲氧基酚或4-羟基苯甲酸)与极性亲水性聚乙烯醇丁醛(PVB)或非极性疏水性乙丙橡胶(SKEP)组成。测试了聚合物和AA在各种溶剂中的溶解度，以选择适合同时制备聚合物/AA溶液和随后的薄膜的溶剂。采用差示扫描量热法和红外光谱法测定了SKEP/AA和PVB/AA组成物的形貌和结构。由于SKEP不与原子吸收剂混合，这些组合物是两相体系。相比之下，PVB/AA组合物代表单相体系。通过氢键的建立来解释PVB与原子吸收剂的相容性。这两种组合物都具有成膜特性。SKEP/AA薄膜具有低刚性，而PVB/AA薄膜具有高刚性。两种成分都能抑制霉菌的生长。

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Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine Biochemistry, Genetics and Molecular Biology-Biochemistry, Genetics and Molecular Biology (all)

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0.60

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