A Synthetic Hydrogel with Thermoreversible Gelation. Ii. Effect of Added Salts

A Synthetic Hydrogel with Thermoreversible Gelation. Ii. Effect of Added Salts
复制标题

具有热可逆凝胶化的合成水凝胶。

DOI：
--
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
E. Tsuchida
E. Tsuchida
中科院分区：
--
文献类型：
--
作者：
H. Yoshioka;M. Mikami;Y. Mori;E. Tsuchida

文献摘要

被引文献

相似文献

摘要用动态粘弹法测定了聚（N-异丙基丙烯酰胺）-b-聚乙二醇热可逆水凝胶的溶胶-凝胶转变温度。溶胶-凝胶转变温度受盐的种类和添加量的影响。随着盐浓度的增加，具有盐析性质的盐降低了溶胶-凝胶转变温度，而具有盐溶性质的盐则提高了溶胶-凝胶转变温度。不同阴离子对溶胶-凝胶转变温度的影响通过它们对疏水效应的影响来解释。
Abstract The sol-gel transition temperature of a thermoreversible hydrogel composed of poly (N-isopropylacrylamide)-b-poly(ethylene glycol) was determined from dynamic viscoelastic measurement. The sol-gel transition temperature was affected by the amount and sort of added salts. With increasing salt concentration, salts with a salting-out nature decreased the sol-gel transition temperature whereas salts with a salting-in nature increased the sol-gel transition temperature. The effect of various anions on the sol-gel transition temperature was interpreted by their influence on the hydrophobic effect.