| 光聚合法对聚异丙基丙烯酰胺纳米凝胶粒径及形状的控制 |
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| 引用本文： | 乔向利,侯征迟,盛康龙,姚思德. 光聚合法对聚异丙基丙烯酰胺纳米凝胶粒径及形状的控制[J]. 微纳电子技术, 2003, 0(Z1) |
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| 作者姓名： | 乔向利 侯征迟 盛康龙 姚思德 |
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| 作者单位： | 中国科学院上海原子核研究所 上海201800(乔向利，侯征迟，盛康龙)，中国科学院上海原子核研究所 上海201800(姚思德) |
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| 摘 要： | 纳米凝胶粒径和形貌的控制一直是纳米凝胶领域的研究热点。本研究利用光聚合的方法 ,无需其他有机添加剂 ,合成出 5～ 10 0nm范围的聚酰胺凝胶。其粒径分布范围可控制在 10nm以内。通过SEM对纳米凝胶形貌进行了表征。从结果看 ,可在纳米尺度上对凝胶的形状进行控制 ,并合成出树枝状、球状、核壳结构的纳米凝胶。这些结果未在文献中报道过
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| 关 键 词： | 光聚合 聚异丙基丙烯酰胺纳米凝胶 窄分布粒径 |
Precise control of poly(N-isopropylacrylamide) nanogel by photopolymerization |
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| QIAO Xiang li,HOU Zheng chi,SHENG Kang long,YAO Si de. Precise control of poly(N-isopropylacrylamide) nanogel by photopolymerization[J]. Micronanoelectronic Technology, 2003, 0(Z1) |
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| Authors: | QIAO Xiang li HOU Zheng chi SHENG Kang long YAO Si de |
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| Abstract: | Poly(N isopropylacrylamide)nanogels of different sizes (5～100 nm) and morphologies were synthesized by photochemical method under different reaction conditions of monomer concentration,atmosphere,and photo sensitizer.PCS and SEM characterizations revealed the photo synthesized nanogels in desirable size within 10 nm distributions and different shapes,depending on the reaction conditions.It has been found that UV light irradiation of low monomer concentrations would form branched and dendritic nanogels,whereas with higher monomer concentrations the products were archic and global nanogels.All the results showed that photo polymerization mechanism is quite different from that of conventional poly merization,which needs to be explored. |
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| Keywords: | photopolymerization poly N isopropylacrylamide nanogel narrow size distribution |
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