| 物理交联聚乙烯醇/羟基末端聚酰胺-胺树型高分子水凝胶的制备与性质研究 |
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| 引用本文： | 武旭业,黄世文,张建涛,卓仁禧.物理交联聚乙烯醇/羟基末端聚酰胺-胺树型高分子水凝胶的制备与性质研究[J].高等学校化学学报,2004,25(2):382-384. |
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| 作者姓名： | 武旭业 黄世文 张建涛 卓仁禧 |
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| 作者单位： | 武汉大学化学系, 生物医用高分子教育部重点实验室, 武汉 430072 |
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| 基金项目： | 国家重点基础研究发展规划 (批准号 :G19990 64 70 3 )，国家自然科学基金 (批准号 :2 0 2 0 40 0 9)资助 |
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| 摘 要： | 聚乙烯醇(PVA)是一种水溶性的生物相容性好并可降解的合成高分子，PVA通过化学或物理方法交联可以形成水凝胶，PVA与聚丙烯酸(PAA)、聚N-异丙基丙烯酰胺(PNIPA)、聚乙烯基吡咯烷酮(PVP)及壳聚糖形成互穿网络型水凝胶，改善凝胶的性质，另一方面，树型高分子是一
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| 关 键 词： | 水凝胶 聚乙烯醇 聚酰胺-胺树型高分子 冷冻-融溶 物理交联 |
| 文章编号： | 0251-0790(2004)02-0382-03 |
| 收稿时间： | 2003-08-12 |
Preparation and Properties of Physically Cross-linked Poly(vinyl alcohol)/Hydroxy-terminated Polyamidoamine Dendrimer Hydrogels |
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| WU Xu-Ye,HUANG Shi-Wen,ZHANG Jian-Tao,ZHUO Ren-Xi.Preparation and Properties of Physically Cross-linked Poly(vinyl alcohol)/Hydroxy-terminated Polyamidoamine Dendrimer Hydrogels[J].Chemical Research In Chinese Universities,2004,25(2):382-384. |
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| Authors: | WU Xu-Ye HUANG Shi-Wen ZHANG Jian-Tao ZHUO Ren-Xi |
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| Institution: | Key Laboratory of Biomedical Polymers of Minstry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China |
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| Abstract: | Novel physically cross-linked hydrogels, composed of PVA and hydroxy-terminated polyamidoamine(PAMAM) dendrimer G6-OH, were prepared by cyclic freezing/thawing treatment of aqueous solutions containing PVA and G6-OH. FTIR analysis indicates that PAMAM dendrimer G6-OH was successfully introduced into PVA hydrogels. Higher contents of G6-OH in PVA/G6-OH hydrogels resulted in higher swelling ratios, and faster reswelling rates. With the increase of freezing/thawing cyclic times, the swelling ratios and reswelling rates of PVA/G6-OH hydrogels decreased, which is similar to that of physically cross-linked PVA hydrogel. |
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| Keywords: | Hydrogel PVA Polyamidoamine dendrimer Freezing-thawing Physically cross-linked |
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