前端聚合聚(N-异丙基丙烯酰胺)水凝胶的温度敏感性研究

Study on the thermo-sensitive behavior of PNIPAM hydrogels synthesized by frontal polymerization

利用前端聚合法制备了聚(N-异丙基丙烯酰胺)(PNIPAM)水凝胶,系统地研究了反应体系组成对PNIPAM水凝胶温度敏感性的影响。结果表明:引发剂、交联剂和溶剂用量的变化不影响PNIPAM水凝胶的相转变温度,但可以作为调控PNIPAM水凝胶吸水能力和响应速率的手段。

Poly （N-isopropylacrylamide） （PNIPAM） hydrogels were synthesized by frontal polymerization tech- nique, and the dependence of thermal sensitive characteristic of products on reactant compositions was studied. The experi- ments results revealed that as to the different content of initiator,crossliner and solvent,the LCST of the hydrogels varied hardly. However, the swelling ratio and response rate of the hydrogels changed correspondingly.