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SPECTRAL METHODS STUDY OF THERMOPLASTIC COPOLYMERS FOR THE MANUFACTURE OF SHOE SUSPENDED MATERIALS

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Background. Analysis of the search for information and literature sources show that most of the polymer materials used for making shoe soles are obtained in a synthetic way; the principles of their creation are based on the laws of chemistry and physics of high-molecular compounds, proceeding more often by a radical mechanism. In order to create polymer shoe compositions, with the subsequent manufacture of synthetic plantar materials based on them, the synthesized thermoplastic acryl ate and vinyl copolymers were studied by infrared (IR) and ultraviolet (UV) spectroscopic analysis methods. Purpose: to establish a scheme for the formation and composition of copolymers of acrylonitrile with butyl methacrylate (AN-BMA) and low-density polyethylene with vinyl acetate (LDPE-VA) using local raw materials. Methodology. IR and UV spectroscopy. Originality. The copolymer for shoe soles was synthesized by inoculating copolymerization of LDPE with BA, the copolymer of AN and BMA was synthesized by emulsion polymerization. Findings. Using IR and UV spectroscopic methods, the mechanism of formation of graft copolymers and their composition are substantiated, depending on the ratio of the initial components of the mixture. Highlights: - the bands of absorption of chromophore groups; - absorption and deformation vibration absorption bands.

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# акрилонитрил# бутилметакрилат# винилацетат# acrylonitrile# butyl methacrylate# vinyl acetate# полиэтилен низкой плотности.# қуйи зичликдаги полиэтилен.# low density

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https://eroi.uz/11.0030/A0220-0033

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