| SA分子量及用量对SA/PNIPAAm semi-IPN水凝胶溶胀性能的影响 |
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| 引用本文： | 张高奇,查刘生,梁伯润.SA分子量及用量对SA/PNIPAAm semi-IPN水凝胶溶胀性能的影响[J].高分子材料科学与工程,2009(9). |
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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;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; |
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| 基金项目： | 东华大学博士论文创新基金资助(YCX0327) |
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| 摘 要： | 研究了海藻酸钠(SA)的分子量及用量对SA/聚(N-异丙基丙烯酰胺)半互穿网络(SA/PNIPAAm semi-IPN)水凝胶的平衡溶胀度、溶胀速率和消溶胀速率的影响。结果发现,水凝胶平衡溶胀度随着凝胶网络中SA组分分子量以及用量的增加而增大;在pH=1.0条件下,SA/PNIPAAm semi-IPN水凝胶的溶胀速率随着SA的分子量以及用量的增加而降低,在pH=7.4条件下,水凝胶的溶胀速率随着SA的分子量以及用量的增加而增大;SA用量较低时,分子量的大小对SA/PNIPAAm semi-IPN水凝胶的消溶胀速率有很大影响,随着SA用量的增加,分子量大小对水凝胶消溶胀速率的影响作用降低。
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| 关 键 词： | 海藻酸钠 聚(N-异丙基丙烯酰胺) 溶胀/消溶胀速率 |
Effect of the Amount and Molecular Weight of Sodium Alginate(SA) on the Swelling Properties of SA/Poly(N-Isopropylacrylamide) Semi-Interpentrating Hydrogel |
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| ZHANG Gao-qi,ZHA Liu-sheng,LIANG Bo-run.Effect of the Amount and Molecular Weight of Sodium Alginate(SA) on the Swelling Properties of SA/Poly(N-Isopropylacrylamide) Semi-Interpentrating Hydrogel[J].Polymer Materials Science & Engineering,2009(9). |
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| Authors: | ZHANG Gao-qi ZHA Liu-sheng LIANG Bo-run |
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| Affiliation: | ZHANG Gao-qi1,ZHA Liu-sheng2,LIANG Bo-run2(1. Zhejiang Transfar Co.,Ltd,Technology Center,Hangzhou 311215,China,2. College of Material Science and Engineering,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 200051,China) |
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| Abstract: | In this paper,the effect of the molecular weight and its amount of sodium alginate(SA) on the volume phase transition temperature,equilibrium swelling ratio,swelling and deswelling rate of SA/ poly(N-isopropylacrylamide) semi-interpenetrating network hydrogel was investigated. The results show that SA molecular weight and its amount used has hardly effect on the volume phase transition temperature (Tp) of the hydrogels. The equilibrium swelling ratio of the hydrogels increases with the increase of the molec... |
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| Keywords: | sodium alginate poly(N-isopropylacrylamide) swelling/deswelling rate |
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