Hydrophobically modified cationic polyelectrolytes

被引：31
作者：
Ghimici, L
Dranca, I
Dragan, S
Lupascu, T
Maftuleac, A
机构：
[1] Romanian Acad, Petru Poni Inst Macromol Chem, RO-6600 Iasi, Romania
[2] Inst Chem, Chisinau 2028, Moldova
来源：
EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 02期
关键词：
cationic polyelectrolyte; flocculation; thermogravimetric analysis; hydrophobic groups;
D O I：
10.1016/S0014-3057(00)00101-4
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Cationic polyelectrolytes with hydrophilic/hydrophobic properties were synthesized by condensation polymerization of epichlorohydrin with dimethylamine, N,N-dimethyl-1,3-diaminopropane, and primary amines with nonpolar chains, hexyloxypropylamine and decyloxypropylamine. Viscometric measurements of these polymers in dilute aqueous solutions with and without salt revealed a typical polyelectrolyte behaviour. Thermal analyses of cationic polyelectrolytes showed that the relative thermal stability decreases with decreasing hydrophobic chain lengths and increasing quaternary ammonium salt group contents. The flocculating efficiency of these polycations on a suspension of montmorillonite was also studied. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码：227 / 231
页数：5
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