ИСТИНА

Nowadays the great attention paid for synthesis and properties investigation of such highly branched macromolecules like dendrimers and hyperbranched polymers. Hyperbranched polymers are macromolecules with three-dimensional highly branched dendritic architecture and have some unique properties like dendrimers, but they MWD aren’t unimodal. For example, they have good solubility, high sorptive capacity, etc. Besides, important property of such compounds is a large number of ending functional groups and a possibility of their further modification for the solution of various engineering tasks. Hyperbranched polymers can be received by various methods. Among them the reaction of 1,3-dipolar cycloaddition of azides to alkynes (1,3-DCA) is of interest thanks to high yields of reaction, selectivity, mild conditions, availability of reagents, positive substitution effect, etc. However the use of this approach at synthesis of polymers in general and HBP in particular is limited. Respectively, the attention is practically not paid to a research of kinetic regularities of processes of HBP synthesis by 1,3-DCA. The purpose of this work was studying of a kinetics of melt polyaddition of azide-acetylene monomers of ABn-type: 2,4-di(prop-2-ynyloxy)-6-azido-1,3,5-triazine (ABPOT) and 2,4-diazido-6-(prop-2-ynyloxy)-1,3,5-triazine (DAPOT) by DSC in nonisothermal conditions. It was established the ‘kinetic trinity’ (Ea, A, f(a)) of this azide-acetylene monomers polyaddition by using some well-known modern model-free methods. The main distinction of the polyaddition in comparison with 1,3-DCA in solution is first order kinetic model.