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Polymers and copolymers based on vinyl tetrazoles, 2. Alkylation of poly(5-vinyl tetrazole)
Authors:Pavel N Gaponik  Oleg A Ivashkevich  Nadejda I Chernavina  Anatoly I Lesnikovich  Gennady T Sukhanov  Gegel A Gareev
Abstract:Alkylation of poly(5-vinyl tetrazole) with dimethyl sulfate and tert-butyl alcohol as well as with alkyl halides RHal (R?CH3, C2H5, CH2? CH?CH2, n-C4H9, t-C4H9) has been studied under various conditions in order to develop a new method of synthesis of tetrazole-containing polymers having a complex of valuable properties. The kinetic study of the process and comparison of isomeric compositions and spectroscopic characteristics (IR, 1H NMR and 13C NMR) of poly(N-alkyl-5-vinyl tetrazole)s synthesized by alkylation of poly(5-vinyl tetrazole) and of those prepared by (co)polymerization of the corresponding vinyl tetrazoles have been carried out. The alkylation is found to proceed to high conversion extents (up to 99.8%) and enables to obtain a wide variety of polymeric products having the composition, structure and properties very similar to those of homo- and copolymers.
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