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COPOLYMERIZATION OF N-METHYLOLACRYLAMIDE WITH N-VINYLLACTAMS

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Background. N-hydroxyl-containing alkylacrylamides occupy a special place among the derivatives of acrylic and methacrylamides, since they allow the creation of new copolymers with specific properties: ionic copolymers, physiologically active and water-soluble copolymers that are used in the textile, food, pharmaceutical and agricultural industries. In this aspect, it is of interest to synthesize and study new copolymers of hydroxyl-containing N-methylolacrylamide (MAA) with N-vinylpyrrolidone (VP) and N-vinylcaprolactam (VCL). Purpose. The aim of the study is to determine the copolymerization constants, activity and polarity of monomers. Obtain dependencies by varying the composition of the monomer mixture and the synthesis conditions, obtaining products of a given composition and determining the degree of alternation. Determine the effect of methylolamide groups on the relative activity of monomers during deep homophase copolymerization. Methodology. Investigation of the kinetics of radical copolymerization of N-methylolacrylamide with N-vinyllactams in dimethylformamide, and dilatometric studies using dinitrilazobisisobutyric acid as an initiator. Determination of the intrinsic viscosity in a Ubbelohde viscometer. Study of the compositions of the obtained copolymers by elemental analysis and IR spectroscopy. Originality. Synthesis and study of some properties of copolymerization of N-methylolacrylamide with N-vinylpyrrolidone and N-vinylcaprolactam. Findings. High-molecular compounds having different functional groups that do not require additional activation and ways to enter into various chemical reactions under rather mild conditions are synthesized. Highights: - copolymers of N-methylolacrylamide with N-vinylpyrrolidone and N-vinylcaprolactam were synthesized; - constants of copolymerization, activity, polarity of monomers, viscosity; - composition of the obtained copolymers was studied.

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# дисперсия# dispersion# N-метилолакриламид# алкилолакриламид# фактор полярности# относительные активности# степень неоднородности.# N-metylolacrylamid# alkilolakrilamid# qutblanish omili# nisbiy faollik# disperslik# N-methylolacrylamide# alkylolacrylamide# polarity factor# relative activity# degree of non-uniformity

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Article Identifiers

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https://eroi.uz/11.0030/A0220-0004

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