PREPARATION AND STUDY OF THE PROPERTIES OF THE COPOLYMER OF CYCLIC UNSATURATED BISMALEIMIDE WITH STYRENE

A.I Alikhanova,R.Sh Rasulzade

doi:10.32737/0005-2531-2021-4-25-29

Abstract

The paper is devoted to the study of regularities of radical copolymerization reactions of unsaturated cyclic N,N'-bisimides (M1) with styrene (M2), the study of dependence of copolymerization reaction rate, composition of obtained copolymers, composition and estimated molecular weight on the composition of the initial monomer mixture. With the increase of bismaleimide amount in the initial monomer mixture a decrease of copolymerization reaction yield and molecular weight of the obtained copolymers was observed. This fact can be explained by active participation of bismaleimide in chain transfer in radical copolymerization reaction. The composition of the obtained copolymers in all cases is rich in styrene links

Highlights

Polystyrene (PS) is of great importance as a modern construction material in combination with general-purpose styrofoam, impact-resistant polystyrene and ABC
The composition and structure of the copolymers were determined based on the IR spectra of the resulting styrene copolymer (Figure 1a) and styrene copolymer (Figure 1b)
Comparison of the IR spectra (Figures 1a and 1b) showed that in the spectra of the styrene copolymer, absorption bands were observed in the region of 1773 cm-1 and there were no absorption bands up to the (C–O) group, (N–C), while in the IR spectra of the resulting copolymer with bismaleinimide, absorption bands of the (C=O) bond were found at 1694 cm-1, for (C–C) bonds in the region of 1707 cm–1, for (N–C) bonds in the region of 1326 cm–1

Summary

Introduction

Polystyrene (PS) is of great importance as a modern construction material in combination with general-purpose styrofoam, impact-resistant polystyrene and ABC (acrylonitrile-butadienestyrene). Polystyrene makes up 6% of the world's polymer materials in the form of plastic mass, it is widely used in many areas of household chemicals, construction and automotive industries [1, 2]. One of the most widely used areas of PS is the production of packaging material for food products by thermoforming. It is important that the resulting polystyrene of this type is resistant to widespread microbes and microfungi [3, 4]. One of the most common methods for the formation of antibacterial properties of polymers is the inclusion of a monomer fragment with antibacterial properties into macrochains at the stage of their synthesis [5]. The aim of this work is to develop a technology for the synthesis of styrene copolymers with unsaturated cyclic N,N'-bisimide of maleic acid to obtain an antibacterial copolymer and to study its physico-mechanical and bactericidal properties [6]

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Results

Conclusion