| 光化学合成P(DMAA-co-MMA)/Nano-SiO2复合水凝胶及其性能研究 |
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| 引用本文： | 刘晓暄,王洪波,白迎坤,吴光国. 光化学合成P(DMAA-co-MMA)/Nano-SiO2复合水凝胶及其性能研究[J]. 影像科学与光化学, 2007, 25(6): 436-444. DOI: 10.7517/j.issn.1674-0475.2007.06.436 |
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| 作者姓名： | 刘晓暄 王洪波 白迎坤 吴光国 |
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| 作者单位： | 广东工业大学,材料与能源学院高分子材料与工程系,广东,广州,510006;汕头大学理学院,化学系,广东,汕头,515063;汕头大学理学院,化学系,广东,汕头,515063 |
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| 基金项目： | 国家自然科学基金 , 教育部科学技术研究项目 , 广东省自然科学基金 |
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| 摘 要： | 以N,N-二甲基丙烯酰胺(DMAA)及甲基丙烯酸甲酯(MMA)为单体,Irgacure 2959为光引发剂,N,N′-二甲基双丙烯酰胺(Bis)为交联剂,利用紫外光引发自由基聚合制备了聚N,N′-二甲基丙烯酰胺(PDMAA)及P(DMAA-co-MMA)水凝胶,并通过加入少量表面改性后的纳米SiO2对该水凝胶进行改性,制得了P(DMAA-co-MMA)/纳米SiO2复合水凝胶,用FT-IR和SEM对产物进行了表征,同时研究该复合凝胶的溶胀动力学、消溶胀动力学、pH值响应性、离子强度等.该方法简便、快捷,大大缩短了聚合时间,合成过程仅需2-3 min.
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| 关 键 词： | 聚N N-二甲基丙烯酰胺 温敏性水凝胶 纳米SiO2 pH值敏感性 |
| 收稿时间： | 2007-01-11 |
Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO2 Complex Hydrogels |
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| LIU Xiao-xuan,WANG Hong-bo,BAI Ying-kun,WU Guang-guo. Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO2 Complex Hydrogels[J]. Imaging Science and Photochemistry, 2007, 25(6): 436-444. DOI: 10.7517/j.issn.1674-0475.2007.06.436 |
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| Authors: | LIU Xiao-xuan WANG Hong-bo BAI Ying-kun WU Guang-guo |
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| Affiliation: | 1. Department of Polymeric Materials and Engineering, College of Material and Energy, Guangdong University of Technology, Guangzhou 510006, Guangdong, P. R. China;2. Department of Chemistry, College of Science, Shantou University, Shantou 515063, Guangdong, P. R. China |
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| Abstract: | Poly(N,N′-dimethylacrylamide) and P(DMAA-co-MMA) copolymer hydrogels have been prepared by the photochemical synthesis,the process of photo-polymerization was completed within 3 minutes.P(DMAA-MMA)/nano-SiO2 complex hydrogels were prepared by the radical graft copolymerization of N,N′-dimethylacrylamide and a bit of MMA onto the surface of nano-SiO2 particles whose surface were modified.Irgacure 2959 was used as photo-initiator and N,N′-methylene bisacrylamide(Bis) was used as the cross-linking agent.The products were characterized by FT-IR and SEM.Swelling dynamics,water release behavior,ionic strength sensitive and pH-sensitive performances of the hydrogels were discussed. |
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| Keywords: | poly(N,N′-dimethylacrylamide) temperature-sensitive hydrogels nano-SiO2 pH-sensitive |
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