Dithiocarbamates as Effective Reversible Addition-Fragmentation Chain Transfer Agents for Controlled Radical Polymerization of 1-Vinyl-1,2,4-triazole.

ABSTRACT: Narrow dispersed poly(1-vinyl-1,2,4-triazole) (PVT) was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of 1-vinyl-1,2,4-triazole (VT). AIBN as the initiator and dithiocarbamates, xanthates, and trithiocarbonates as the chain transfer agents (CTA) were used. Dithiocarbamates proved to be the most efficient in VT polymerization. Gel permeation chromatography was used to determine the molecular weight distribution and polydispersity of the synthesized polymers. The presence of the CTA stabilizing and leaving groups in the PVT was confirmed by ¹H and ¹³C NMR spectroscopy. The linear dependence of the degree of polymerization on time confirms the conduct of radical polymerization in a controlled mode. The VT conversion was over 98% an

SUBMITTER: Pozdnyakov AS 

PROVIDER: S-EPMC9147191 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature