| 壳聚糖/聚(N-异丙基丙烯酰胺)全互穿网络水凝胶的制备及性能 |
| |
| 引用本文： | 刘长军,田丰,李钒,刘圣军,邢楠.壳聚糖/聚(N-异丙基丙烯酰胺)全互穿网络水凝胶的制备及性能[J].高分子材料科学与工程,2011(6):166-169. |
| |
| 作者姓名： | 刘长军 田丰 李钒 刘圣军 邢楠 |
| |
| 作者单位： | 军事医学科学院卫生装备研究所 |
| |
| 基金项目： | 全军医药卫生科研基金面上项目(06MA341) |
| |
| 摘 要： | 以壳聚糖(CS)和N-异丙基丙烯酰胺(NIPAAm)为原料,N,N'-亚甲基双丙烯酰胺(BIS)为交联剂,制备具有温度和pH值双敏感性的全互穿网络水凝胶(Full-IPN);利用红外光谱(FT-IR)对其分子结构进行表征,扫描电镜(SEM)观察其内部形貌,并通过DSC对其低临界溶解温度(LCST)进行表征,最后研究了不...
|
| 关 键 词： | 聚(N-异丙基丙烯酰胺) 壳聚糖 互穿聚合物网络 水凝胶 |
Preparation and Properties of Dual-Stimuli-Responsive Hydrogels Based on Chitosan/Poly(N-Isopropylacrylamide) Interpenetrating Polymer Networks |
| |
| Changjun Liu,Feng Tian,Fan Li,Shengjun Liu,Nan Xing.Preparation and Properties of Dual-Stimuli-Responsive Hydrogels Based on Chitosan/Poly(N-Isopropylacrylamide) Interpenetrating Polymer Networks[J].Polymer Materials Science & Engineering,2011(6):166-169. |
| |
| Authors: | Changjun Liu Feng Tian Fan Li Shengjun Liu Nan Xing |
| |
| Affiliation: | (Institute of Medical Equipment,Academy of Military Medical Sciences,Tianjin 300161,China) |
| |
| Abstract: | Full interpenetrating polymeric networks(full-IPN) hydrogels based on poly(N-isopropylacrylamide)/ chitosan were prepared by radical-induced polymerization of(N-isopropylacrylamide) in the presence of chitosan using methylene bisacrylamide as the crosslinker.The low critical solution temperature(LCST) of PNIPAAm/CS hydrogels with full-IPN structure was evaluated utlizing differential scanning calorimeter.An increase of chitosan causes a decrease in the enthalpy of the phase transition as well as an increase in the transition temperature(LCST) from 33.28℃to 34.76℃.In addition,the swelling characteristics of hydrogel system were thoroughly investigated.The full-IPN hydrogels show a transition from the swollen to the collapsed state at temperature above 33℃,and swelling ratio increases with the decrease in pH,and an obvious change can be found at pH 4.0. |
| |
| Keywords: | poly(N-isopropylacrylamide) chitosan interpenetrating polymer network hydrogel |
| 本文献已被 CNKI 等数据库收录！ |
