Radiation-induced copolymerization of N-vinylpyrrolidone with aminoalkyl acrylates and the molecular characteristics of copolymers

被引：0

作者：

Ushakova, V.N. ^{[1
]}

Kipper, A.I. ^{[1
]}

Afanakina, N.A. ^{[1
]}

Samarova, O.E. ^{[1
]}

Klenin, S.I. ^{[1
]}

Panarin, E.F. ^{[1
]}

机构：

[1] Inst Vysokomolekulyarnykh Soedinenij, RAN, Sankt-Peterburg, Russia

来源：

Teoreticheskie Osnovy Khimicheskoi Tekhnologii | 1995年 / 29卷 / 05期

关键词：

Radiation induced polymerization - Vinyl pyrrolidone;

D O I：

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学科分类号：

摘要：

Copolymers of N-vinylpyrrolidone with 2-(N,N-dimethylamino)methyl and 2-(N,N-diethylamino)ethyl methacrylates and their quaternary ammonium salts were synthesized using radiation-induced polymerization and followed reactions with primary amines C2-C10. Molecular and conformational characteristics of the copolymers were studied using light scattering and viscosimetry. As the length of an alkyl radical in increased to 6, the intramolecular interactions are disbalanced and electrostatic repulsion is suppressed, what results in the contraction of macromolecular coil and second virial coefficient, intrinsic viscosity, and macromolecular dimensions decrease. At alkyl radical length >6, steric interactions between the side groups give rise to increase in intrinsic viscosity and macromolecular dimensions, whereas the second virial coefficient continues to decrease.

引用

页码：933 / 938