Синтез и сополимеризация бензамидметакрилата со стиролом

Abstract

It has been synthesized a new monomer — benzamide methacrylate and its free radical copolymerization with styrene in mass and solution in benzene in the presence of diazoisobutyric acid AIBN) has been carried out and investigated. The ratio of comonomers was changed in the range of 90:10 – 10:90 mol. %. The total concentration of comonomers is 1.7 mol/l at temperature 70 °C. The composition of the synthesized copolymers was determined by the method of elemental analysis on nitrogen content. The monomer and copolymer have been characterized by spectroscopic methods (IR and NMR). The relative activity constant values of the monomer have been determined and Q – e parameters according to Alfrey – Price have been calculated. For estimation of the nature of the links distribution in the macromolecular chain, the microstructure parameters have been calculated. It has been revealed that in all cases r1 > r2, therefore the copolymer is enriched with benzamide methacrylate links. It has been found that the composition of the formed copolymers depends on the composition of the initial monomer mixture. It has been established that the obtained copolymer has a sufficiently high medical-biological activity, which opens up the possibility of using it as bactericides and fungicides. It has been shown that the copolymers obtained on the basis of benzamide methacrylate are non-toxic and can be used as bactericidal preparations. It has been revealed that the biocidal effect has been primarily connected with the availability of benzamide fragment links in the macro-chain.