| 交联聚(N-异丙基丙烯酰胺)/(海藻酸钠/聚(N-异丙基丙烯酰胺))半互穿网络水凝胶的制备及其溶胀性能 |
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| 引用本文： | 张高奇,查刘生,梁伯润. 交联聚(N-异丙基丙烯酰胺)/(海藻酸钠/聚(N-异丙基丙烯酰胺))半互穿网络水凝胶的制备及其溶胀性能[J]. 功能高分子学报, 2009, 22(1): 64-68 |
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| 作者姓名： | 张高奇 查刘生 梁伯润 |
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| 作者单位： | 浙江传化股份有限公司技术中心,杭州,311215;东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海,200051 |
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| 摘 要： | 将线性聚(N-异丙基丙烯酰胺)(PNIPAAm)和海藻酸钠(SA)分子同时引入到PNIPAAm凝胶中,制备了交联聚(N-异丙基丙烯酰胺)/(海藻酸钠/聚(N-异丙基丙烯酰胺))半互穿网络(Cr-PNIPAAm/(SA/PNIPAAm)semi-IPN)水凝胶。在弱碱性条件下(pH=7.4),改变SA与线性PNIPAAm的质量比对Cr-PNIPAAm/(SA/PNIPAAm)semi-IPN水凝胶的溶胀度没有太大的影响。在酸性条件下(pH=1.0),其溶胀度随着SA与线性PNIPAAm质量比的减小而增大。由于亲水性SA与线性PNIPAAm的协同作用,Cr-PNIPAAm/(SA/PNIPAAm)semi-IPN水凝胶的消溶胀速率得到很大提高。
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| 关 键 词： | 海藻酸钠 聚(N-异丙基丙烯酰胺) 温敏性水凝胶 |
Preparation and Swelling Properties of Cross-Linked Poly(N-isopropylacrylamide) / (Sodium Alginate/Poly(N-isopropylacrylamide) )Semi-interpenetrating Polymer Network Hydrogel |
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| ZHANG Gao-qi,ZHA Liu-sheng,LIANG Bo-run. Preparation and Swelling Properties of Cross-Linked Poly(N-isopropylacrylamide) / (Sodium Alginate/Poly(N-isopropylacrylamide) )Semi-interpenetrating Polymer Network Hydrogel[J]. Journal of Functional Polymers, 2009, 22(1): 64-68 |
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| Authors: | ZHANG Gao-qi ZHA Liu-sheng LIANG Bo-run |
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| Affiliation: | 1.Technology Center of Zhejiang Transfar Limited Company;Hangzhou 311215;China;2.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials;College of Material Science and Engineering;Donghua University;Shanghai 200051;China |
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| Abstract: | Cross-linked poly(N-isopropylacrylamide)/sodium alginate/linear poly(N-isopropylacryla-(mide)) semi-interpenetrating polymer network(Cr-PNIPAAm/(SA/PNIPAAm) semi-IPN) hydrogels were prepared by addition of sodium alginate and linear PNIPAAm into cross-linked PNIPAAm hydrogel network.Results indicate that the mass ratios of SA to linear PNIPAAm have little effects on the swelling(ratios) of Cr-PNIPAAm/(SA/PNIPAAm) semi-IPN hydrogels in weakly alkaline medium(pH=7.4).Whereas the swelling ratios of the hydroge... |
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| Keywords: | sodium alginate poly(N-isopropylacrylamide) temperature-sensitive hydrogel |
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