Special place among the derivative acrylamide occupyes N-hydroxyl contain alcylacrylamids, as they allow creating new conjoint polymer with specific properties: ionogenic, biologically active and watersoluble conjoint polymer, which find application in textile, food, a pharmaceutical industry and in agriculture as well. During the search of new polymers with reaction able groups we synthesized and studied conformational properties of water-soluble conjoint polymer: N-vinylpyrrolidone (VP) and Nvinylcaprolactam (VCL) with N-methyl-metacrylamid (МАА) and with N-ethylmetacrylamid (EМА). The research of conformational parameters of conjoint polymer represents an interest from the point of view of creation of biologically active preparations with the set properties. Big possibilities of regulation of properties and structure of macromolecules of conjoint polymer vinyl-lactam is opened during the usage of somonomers, containing alcylolamid groups. Keywords: conjoint polymer, n-vinillactam, n-alcylolacrylamid, polymer chemistry. Results and their discussionThe study of conformational characteristics of these conjoint polymers will allow to check up applicability for them the basic laws of behavior of macromolecules in the diluted solutions, established for homopolyvinyl-lactam and their conjoint polymer with some vinyl monomers, and also to reveal the features of influence of introduction such monomers as alcylolacrylamid in a chain polyvinillactam on conformation of their macromolecules.The , calculated with a method of the least squares, are presented on the table 2. In an investigated interval of molecular weights the experimental points in double logarithmic scale well reflect the linear dependence.Comparisons of values of factors of the resulted equations for homopolymers PVP, PVK and conjoint polymer N-alcylolacrylamids with N-vinyl-lactams show the distinctions caused by different hydrodynamic behavior of their molecules in a solution.The sense of indicators of degrees and -v the investigated conjoint polymer з an interval of molecular weights for MAA-VP and EMA-VP it is more than 0.5, and for copolymer MAA-VCL are close to 0.5 that is caused for linear polymers, first of all, by a deviation of quality of solvent from ideality. The analysis of experimental results shows that the behavior of macromolecules of conjoint polymer N-alcylolacrylamids with N-vinyl-lactam in the used solvents can be described by means of model of non-proceeded Gaussian

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By interaction of tetrahydrofurfuryl ether of monochloroacetic and 3-chloropropionic acid with trihydrate of N,Ndiethyldithiocarbamate sodium there have been synthesized the corresponding s-(carbtetrahydrofurfuryloxy)alkyl-N,Ndiethyldithiocarbamates. The effi  ciency of the latter ones as plasticizers of the polymer compositions on the basis of polyvinyl chloride has been studied.