聚(AA-co-AM)/壳聚糖IPN超大孔水凝胶的制备及性能  

Synthesis and Properties of Poly(AA-co-AM)/Chitosan Superporous IPN Hydrogels

作　　者：敖海勇[1] 黄妙良[1] 吴季怀[1] 林建明[1] 

机构地区：[1]华侨大学材料物理化学研究所,福建泉州362021

出　　处：《高分子材料科学与工程》2008年第11期157-160,共4页Polymer Materials Science & Engineering

基　　金：福建省新材料与器件重大专题资助项目(2004HZ01-3);福建省重大科研项目(2002H002)

摘　　要：以丙烯酸、丙烯酰胺为基体,壳聚糖为添加物,N,N’-亚甲基双丙烯酰胺、戊二醛为复合交联剂,利用水溶液聚合法和发泡技术制备了聚(丙烯酸-丙烯酰胺)/壳聚糖互穿网络超大孔水凝胶。采用差示扫描量热法(DSC)、红外光谱(FT-IR)和扫描电镜(SEM)等分析技术进行了表征,研究了水凝胶的溶胀行为和凝胶压缩强度。实验结果表明,该互穿网络超大孔水凝胶具有较快的溶胀速率和较好的凝胶强度。With acrylic acid （APt） and acrylamide （AM） as matrix, chitosan as hybrid agent, N, N＇-methylenebisacrylamide and glutaraldehyde as crosslinkers, poly （AA-co-AM）/Chitosan superporous IPN hydrogels was prepared by aqueous solution polymerization and foaming technique. The analysis of differential scanning calorimetry （DSC） and infrared spectra （FT-IR） showed the formation of IPN and the image of scanning electron microscopy （SEM） revealed the porous structure. The swelling behavior and the mechanical property were studied. When Cs/matrix was 15% and CA/ Cs was 4%, the compressive strength of SPIH was 30 kPa and the time to swelling equilibrium was only 5 min. The prepared superporous IPN hydrogels possessed both excellent property of fast swelling and fairly high mechanical properties may be used for drug release.

关 键 词：超大孔水凝胶 互穿网络 溶胀行为 凝胶强度 

分 类 号：TQ316.6[化学工程—高聚物工业]