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| 快速响应PNIPA／Fe3O4复合凝胶辐射制备与性能研究 | |
| 引用本文： | 张鸿儒,刘文涛,何素芹,李智慧,杨明成,李中原,朱诚身.快速响应PNIPA／Fe3O4复合凝胶辐射制备与性能研究[J].辐射研究与辐射工艺学报,2009,27(3):139-144. |
| 作者姓名： | 张鸿儒 刘文涛 何素芹 李智慧 杨明成 李中原 朱诚身 |
| 作者单位： | 1. 郑州大学材料科学与工程学院,郑州,450052 2. 郑州大学材料科学与工程学院,郑州,450052;郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052 3. 河南省科学研究院同位素研究所,郑州,450015 |
| 基金项目： | 河南省教育厅自然科学基金，河南省材料物理教育部重点实验室开放研究课题 |
| 摘 要： | 采用化学共沉淀法制备了四氧化三铁粒子，以N-异丙基丙烯酰胺（NIPA）、N，N-亚甲基双丙烯酰胺（MBA）和聚乙二醇（PEG）为原料，以60Coγ，射线为放射源，辐照聚合制备了多孔PNIPA／Fe3O4复合水凝胶，并对其温度敏感性、平衡溶胀率进行了表征。研究发现：磁性四氧化三铁纳米粒子在凝胶中分散均匀；凝胶具有明显的温度敏感性；致孔剂的添加提高了水凝胶的平衡溶胀率，多孔复合水凝胶失水率达96％，比普通磁性水凝胶失水率提高了约76％；致孔剂的添加使复合凝胶的最低临界相转变温度由34℃升高至37℃左右。 |
| 关 键 词： | 辐射 磁性水凝胶 聚N-异丙基丙烯酰胺 四氧化三铁 快速响应 |
Radiation preparation and characterization of PNIPA/ Fe_3O_4 hydrogels with rapid responsibility |
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| ZHANG Hongru,LIU Wentao,HE Suqin,LI Zhihui,YANG Mingcheng,LI Zhongyuan,ZHU Chengshen.Radiation preparation and characterization of PNIPA/ Fe_3O_4 hydrogels with rapid responsibility[J].Journal of Radiation Research and Radiation Processing,2009,27(3):139-144. | |
| Authors: | ZHANG Hongru LIU Wentao HE Suqin LI Zhihui YANG Mingcheng LI Zhongyuan ZHU Chengshen |
| Affiliation: | School of Materials Science and Engineering;Zhengzhou University;Zhengzhou 450052;China;Key Laboratory of Material Physics of the Ministry of Education of China;Department of Physics;China;Isotope Institute of Henan;Academy of Sciences;Zhengzhou 450015;China |
| Abstract: | Nano-magnetic particles (Fe3O4) prepared by chemical-co-deposition method were modified by radiation-induced polymerization of N-isopropylacrylamide (NIPA), MBA and PEG. It has been found that the distribution of the porous magnetic particles was uniform and the equilibrium swelling ratio of porous magnetic hydrogels is larger than that of nonporous magnetic hydrogels. The losing water ratio of the porous magnetic hydrogels is 96 % which is enhanced about 76 % compared with ordinary magnetic hydrogels. And ... |
| Keywords: | Radiation Magnetic hydrogels N-isopropylacrylamide （PNIPA） Fe3O4 Rapid response |
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