Synthesis of Poly(N-vinylpyrrolidone)and N-Vinylpyrrolidone-Methyl Methacrylate Copolymers in the Presence of C-Phenyl-N-tert-butylnitrone

摘要

The free-radical polymerization of N-vinylpyrrolidone and its copolymerization with methyl methacrylate have been studied at 60°C in the presence of C-phenyl-N-tert-butylnitrone as a chain-growth regulator.It has been shown that the above additive makes it possible to synthesize poly(N-vinylpyrrolidone)and its copolymers without any gel effect and to control molecular-mass characteristics of homo-and(co)polymers.