POLYMERS AND COPOLYMERS BASED ON VINYL TETRAZOLES .2. ALKYLATION OF POLY(5-VINYL TETRAZOLE)

Alkylation of poly(5-vinyl tetrazole) with dimethyl sulfate and tert-b utyl alcohol as well as with alkyl halides RHal (R=CH3, C2H5, CH2-CH=C H2, 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 pro cess and comparison of isomeric compositions and spectroscopic charact eristics (IR, H-1 NMR and C-13 NMR) of poly(N-alkyl-5-vinyl tetrazole) s synthesized by alkylation of poly(5-vinyl tetrazole) and of those pr epared by (co)polymerization of the corresponding vinyl tetrazoles hav e been carried out. The alkylation is found to proceed to high convers ion extents (up to 99.8%) and enables to obtain a wide variety of poly meric products having the composition, structure and properties very s imilar to those of homo- and copolymers.