| Effects of postthermal treatment and UV irradiation on the structure of titania-polyacrylate nanocomposites |
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| 作者姓名： | Tao Wan Fei Feng Yuechuan Wang |
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| 作者单位： | [1]State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China [2]College of Materials and Chemistry ＆ Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China |
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| 摘 要： | The effects of postthermal treatment and irradiation time on the structure and thermal stability of TiO2/polyacrylate nanocomposites by a sol-gel process in reverse micelles and subsequent rapid photopolymerization were investigated, and the hybrid films were characterized by thermal gravimetry analysis （TGA）, X-ray photoelectron spectrum （XPS）, and atomic force microscopy （AFM）. XPS data suggested that the prolongation of irradiation time and the postthermal treatment promoted titania formation, with the former affecting more remarkably. TGA data showed that TiO2-hybrid films could upgrade the decomposition onset temperature （Tonset） as well as the temperature at which there is a maximum mass loss rate （Tmax）. AFM data demonstrated that the inorganic titania particles with a mean diameter of 25.26-28.84 nm were homogeneously distributed in the organic matrix.
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| 关 键 词： | 二氧化钛 反向胶束 溶胶-凝胶 光聚作用 纳米复合材料 |
| 收稿时间： | 2005-10-18 |
Effects of postthermal treatment and UV irradiation on the structure of titania-polyacrylate nanocomposites |
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| Tao Wan Fei Feng Yuechuan Wang.Effects of postthermal treatment and UV irradiation on the structure of titania-polyacrylate nanocomposites[J].Journal of University of Science and Technology Beijing,2006,13(4):372-379. |
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| Authors: | Tao Wan Fei Feng Yuechuan Wang |
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| Affiliation: | 1. State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China;College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
2. State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China |
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| Abstract: | The effects of postthermal treatment and irradiation time on the structure and thermal stability of TiO2/polyacrylate nanocomposites by a sol-gel process in reverse micelles and subsequent rapid photopolymerization were investigated, and the hybrid films were characterized by thermal gravimetry analysis (TGA), X-ray photoelectron spectrum (XPS), and atomic force microscopy (AFM).XPS data suggested that the prolongation of irradiation time and the postthermal treatment promoted titania formation, with the former affecting more remarkably. TGA data showed that TiO2-hybrid films could upgrade the decomposition onset temperature (Tonset) as well as the temperature at which there is a maximum mass loss rate (Tmax). AFM data demonstrated that the inorganic titania particles with a mean diameter of 25.26-28.84 nm were homogeneously distributed in the organic matrix. |
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| Keywords: | titanium dioxide reverse micelles sol-gel method photopolymerization nanocomposites |
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