PREPARATION OF FAST TEMPERATURE RESPONSIVE POROUS POLY(N-ISOPROPYLACRYLAMIDE) HYDROGELS USING SODIUM ALGINATE AS PORE-MAKING AGENT IN SODIUM CHLORIDE SOLUTIONS
在NaCl溶液中以海藻酸钠为致孔剂制备快速温度响应型多孔聚(N-异丙基丙烯酰胺)水凝胶

Porous poly(N-isopropylacrylamide)(PNIPAAm) hydrogels were prepared using sodium alginate(SA) as pore-making agent in aqueous NaCl solutions.The porous structure of the PNIPAAm hydrogels was confirmed by SEM and SAXS,and the results showed that the pores in the hydrogels were interconnected and their pore sizes were increased with the NaCl concentrations used in the polymerization media.Accordingly,the deswelling rates of the porous hydrogels were enhanced with the NaCl concentrations.The water retention ra...