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.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
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)
关键词
超大孔水凝胶
互穿网络
溶胀行为
凝胶强度
superporous hydrogels
IPN
swelling behavior
mechanical properties
