摘要
采用热化学聚合法制备了聚甲基丙烯酸N,N-二甲基氨基乙酯(PDMAEMA)水凝胶,并对其溶胀性能进行了研究。研究结果表明,PDMAEMA水凝胶具有温度敏感性,在去离子水中其LCST约为50℃;水凝胶的温度敏感性与介质的pH值有关,在碱性溶液中凝胶表现出典型的温度敏感性,而在酸性溶液中凝胶的溶胀率受温度的影响很小,没有温度敏感性。
Poly （N, N-dimethylaminoethyl methacrylate） （PDMAEMA） hydrogels are synthesized by thermo- polymerization and its swelling behavior is studied. It turns out that the hydrogels exhibite temperature sensitivity, the lower critical solution temperature（LCST） of PDMAEMA hydrogels is about 50℃ under deionized water. The experimental results also show that the pH values of solution have a great effect on the temperature sensitivity of the hydrogels. The hydrogels exhibite obvious temperature sensitivity in high pH values buffer solutions, but the temperature has a small influence on the hydrogels in low pH values buffer solutions.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2009年第20期32-34,38,共4页
Materials Reports
基金
航空高校基金项目(EC200719104)
防化指挥工程学院博士科研启动基金
