Effect of a cross-linking agent on the synthesis and colloidal properties of poly(N-isopropylmethacrylamide) microgel latexes

被引：0
|
作者：
Duracher, D [1 ]
Elaissari, A [1 ]
Pichot, C [1 ]
机构：
[1] Ecole Normale Super Lyon, CNRS, Unite Mixte BioMerieux, F-69364 Lyon, France
来源：
MACROMOLECULAR SYMPOSIA | 2000年 / 150卷
关键词：
D O I：
10.1002/1521-3900(200002)150:1<305::AID-MASY305>3.0.CO;2-H
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Microgel latex particles were prepared by batch precipitation polymerization of N-isopropylmethacrylamide (NIPMAM) monomer, using methylenebisacrylamide (MBA) and potassium persulfate (KPS) as a crosslinker and initiator respectively. Polymerization kinetics and final particle size as measured by quasi-elastic light scattering (QELS) at 20 degrees C was not affected upon varying the cross-linker concentration. In contrast, the final particle size determined using both QELS (at 50 degrees C) and SEM exhibits an increased in particle diameter upon increasing the MBA concentration. In addition, the amount of water soluble polymer was found to be directly related to the amount of MBA. Finally, the electrophoretic mobility behavior of the obtained latexes were investigated as a function of temperature.
引用
收藏
页码：305 / 311
页数：7
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