Aqueous-Phase Copolymerization of N-Vinylpyrrolidone and N-Vinylformamide

被引：8
|
作者：
Santanakrishnan, Sandhya [1 ]
Stach, Marek [2 ]
Lacik, Igor [2 ]
Hutchinson, Robin A. [1 ]
机构：
[1] Queens Univ, Dept Chem Engn, Kingston, ON K7L 3N6, Canada
[2] Slovak Acad Sci, Inst Polymer, Bratislava 84551, Slovakia
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2012年 / 213卷 / 13期
关键词：
aqueous phase; copolymerization; kinetic modeling; N-vinylpyrrolidone; N-vinylformamide; WATER-SOLUBLE COPOLYMERS; REACTIVITY RATIOS; RADICAL COPOLYMERIZATION; PLP-SEC; BUTYL ACRYLATE; POLYMERIZATION; KINETICS; ACID; MONOMERS;
D O I：
10.1002/macp.201200107
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Aqueous-phase batch free-radical copolymerization of NVP and NVF is studied at 60 and 85 degrees C with varying initial monomer mixture compositions and monomer to water ratios. The rate of monomer conversion is found to increase with increasing NVP molar fraction and with decreasing total monomer concentration, in accordance with the expected behavior based on homopolymerization kinetics. The copolymer composition is equal to the initial comonomer composition, indicating monomer reactivity ratios to be unity. A terminal copolymerization model provides a good description of polymerization rate, copolymer composition, and polymer molar mass distributions using the same kinetic rate coefficients as used to previously describe the homopolymerization of the two monomers.
引用
收藏
页码：1330 / 1338
页数：9
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