摘要
以N-异丙基丙烯酰胺(NIPA)为第一单体,分别以N,N-二乙基丙烯酰胺及N,N-二正丙基丙烯酰胺为第二单体合成了两种不同的共聚物/粘土纳米复合水凝胶。结果表明:复合共聚凝胶的平衡溶胀率、温度响应性能均有较大提高,在一定范围内增大加入的粘土含量,其性能的提高越明显。
Two kinds of nanohydrogels were prepared by free radical polymerization in aqueous solution of N-isopropylacrylamide with di-n-propylacrylamide,N,N-diethylacrylamideas hydrophobic comonomer, organically modified clay was used to make hydrogels be composites. The swelling equilibrium of these hydrogels was studied, the result is that the copolymeric hydrogels with the absence of clay exhibit excellent properties than PNIPA hydrogel, well the nanohydrogels exhibit a larger swelling ratio and a faster resposive rate as compared to conventional copolymeric hydrogels.The effects of surfactant on the swelling equilibrium of some nanohydrogels were studied in aqueous solution. these nanohydrogels and copolymeric hydrogels may be useful in biotechnological and biomedical fields.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2005年第2期114-117,共4页
Polymer Materials Science & Engineering
