Studies on The Modification of N-VinylpyrroKdone - Methyl methacrylate Copolymer

Authors : Abo El-khaır B.m. MOSTAFA

Pages : 0-0

Doi:10.1501/Commub_0000000201

View : 7 | Download : 6

Publication Date : 1983-01-01

Article Type : Research Paper

Abstract :The copolymerization behaviour of N-vinylpyrrolidone insert ignore into journalissuearticles values(NVP); and methyl methacrylate insert ignore into journalissuearticles values(MMA); in the presence of ZnCl2 was investigated. It was observed that, the value of the mono- mer reactivity ratio at 65 °C for NVP insert ignore into journalissuearticles values(r ); increases from 0.044 to 0.297 with the addition of ZnCl2 in the polymerizing system, i.e., [ZnCl2] / [NVP -p MMA] from 0.0 to 0.1. However, the value of r2 insert ignore into journalissuearticles values(for MMA); decreases from 1.866 to 0.858 at the same concentration of ZnCl2. This indicates that, the reactivity of NVP increases totvards the copolymerization reaction, thus affecting the properties and uses of the obtained copolymers.
Keywords : Modification, VinylpyrroKdone, methacrylate