| 环境响应性核-壳结构微凝胶的受限溶胀 |
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| 引用本文： | 李鑫.环境响应性核-壳结构微凝胶的受限溶胀[J].嘉应学院学报,2005,23(6):21-26. |
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| 作者姓名： | 李鑫 |
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| 作者单位： | 嘉应学院,化学系,广东,梅州,514015 |
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| 摘 要： | 以二步水溶液分散聚合法制备了具有温度及pH值双重响应性能的核-壳单分散纳米微凝胶,对微凝胶的形态、结构及粒径分布进行了表征,并采用动态光散射对其溶胀性能进行了研究,发现高度溶胀的P4VP壳层会对核的充分溶胀带来一定限制,并使其溶胀率下降.
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| 关 键 词： | 响应性凝胶 核-壳结构 受限溶胀 二步水溶液分散聚合 |
| 文章编号： | 1006-642X(2005)06-0021-06 |
| 修稿时间： | 2005年10月12 |
Restricted Swelling of Environmentally Responsive Core-Shell Microgels |
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| LI Xin.Restricted Swelling of Environmentally Responsive Core-Shell Microgels[J].Journal of Jiaying University,2005,23(6):21-26. |
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| Authors: | LI Xin |
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| Abstract: | Narrowly distributed core-shell microgels with temperature-and pH-sensitivity have been successfully prepared by a two-step aqueous dispersion polymerization.The morphology,structure and size distributions of resultant core-shell particles were determined.The deswelling behavior investigated by dynamic laser light scattering shows that highly cross-linked P4VP shell will restrict the swelling degree of the lightly cross-linked PNIPAM core,resulting in a decrease in the swelling ratio of the whole core-shell particles. |
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| Keywords: | responsive hydrogels core-shell structure restricted swelling two-step aqueous dispersion polymerization |
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