RADICAL POLYMERIZATION OF WATER-SOLUBLE MONOMERS IN VARIOUS SOLVENTS

被引:18
|
作者
GROMOV, VF
BOGACHEV, YS
BUNE, YV
ZHURAVLEVA, IL
TELESHOV, EN
机构
[1] Karpov Institute of Physical Chemistry, 103064 Moscow, Ul. Obukha
关键词
Nuclear Magnetic Resonance - Polyamides - Solutions - Water;
D O I
10.1016/0014-3057(91)90175-N
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The NMR-spectra of acrylamide and polyacrylamide in various mixtures of water with DMSO have been studied as well as of N-vinylpyrrolidone and its polymer in various solvents. The results indicate that, while the carbonyl groups of acrylamide and N-vinylpyrrolidone in aqueous solution are practically completely bonded with water molecules, in the case of the corresponding polymers only some of the carbonyl groups take part in the formation of H-bonds because of the hydrophobic interactions arising in aqueous solutions of these polymers. These results make it possible to propose a mechanism for the solvent effects in the radical polymerization of water-soluble monomers.
引用
收藏
页码:505 / 508
页数:4
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