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STUDY ON THE SWELLING KINETIC OF SODIUM ALGINATE AND POLY(N-ISOPROPYLACRYLAMIDE)SEMI-INTERPENETRATING (SEMI-IPN) HYDROGEL
Author(s): 
Pages: 35-39
Year: Issue:  1
Journal: ACTA POLYMERICA SINICA

Keyword:  海藻酸钠N-异丙基丙烯酰胺半互穿网络水凝胶溶胀速率;
Abstract: 以海藻酸钠(SA)和N-异丙基丙烯酰胺(NIPAM)为原料,制备出具有温度敏感性的半互穿网络水凝胶(SA/PNIPAM semi-IPN).主要研究了海藻酸钠用量、水介质温度及pH值对该凝胶溶胀速率的影响.结果表明,在PNIPAM最低临界溶解温度(LCST)以下,该凝胶的溶胀速率随着凝胶网络中SA组分的增加而增大,且溶胀速率取决于高分子链的松弛速率;pH对凝胶溶胀速率的影响与温度有关,温度对溶胀速率的影响与pH有关.
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