New stimuli-responsive copolymers of N-acryloyl-N′-alkyl piperazine and methyl methacrylate and their hydrogels

被引：69
作者：
Gan, LH [1 ]
Deen, GR [1 ]
Loh, XJ [1 ]
Gan, YY [1 ]
机构：
[1] Nanyang Technol Univ, Sch Sci, Div Chem, Singapore 259756, Singapore
来源：
POLYMER | 2001年 / 42卷 / 01期
关键词：
water-soluble polymers; piperazine; lower critical solution temperature;
D O I：
10.1016/S0032-3861(00)00296-2
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Water-soluble copolymers of N-acryloyl-N'-alkylpiperazine (alkyl: methyl, ethyl) with methyl methacrylate were synthesized and the lower critical solution temperatures (LCSTs) of the copolymers which depend on the compositions and pH of the aqueous solutions are described. The effects of cationic surfactants and simple inorganic salts on the LCSTs are also reported. The influences of pH and temperature on the swelling of the ionizable and thermosensitive hydrogels are studied. (C) 2000 Elsevier Science Ltd. All rights reserved.
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收藏
页码：65 / 69
页数：5
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