Zhang X, Zhuo R
Laboratory of Biomedical Polymer Materials of the Ministry of Education Department of Chemistry, Wuhan University, Wuhan, 430072, People's Republic of China
J Colloid Interface Sci. 2000 Mar 15;223(2):311-313. doi: 10.1006/jcis.1999.6654.
A new PNIPA hydrogel was synthesized by carrying out the polymerization in the gelated corn starch aqueous solution. This PNIPA hydrogel has an improved surface property and does not form the disadvantageous bubbles during the shrinking process. This change is due to the hydrogen bonds between the corn starch and the hydrophilic side groups of the PNIPA chains, which let the starch act as the long graft-like chains of the PNIPA hydrogel. During the reswelling process, this PNIPA hydrogel exhibits a sigmoidal swelling pattern. This hydrogel with improved surface property may be very useful for the potential applications of the temperature-sensitive hydrogel. Copyright 2000 Academic Press.
通过在凝胶化的玉米淀粉水溶液中进行聚合反应合成了一种新型聚异丙基丙烯酰胺（PNIPA）水凝胶。这种PNIPA水凝胶具有改善的表面性质，并且在收缩过程中不会形成不利的气泡。这种变化是由于玉米淀粉与PNIPA链的亲水性侧基之间的氢键，这使得淀粉充当PNIPA水凝胶的长接枝状链。在再溶胀过程中，这种PNIPA水凝胶呈现出S形溶胀模式。这种具有改善表面性质的水凝胶对于温度敏感水凝胶的潜在应用可能非常有用。版权所有2000年学术出版社。
