| A Novel Polymethyl Methacrylate （PMMA）TiO2 Nanocomposite and Its Thermal and Photic Stability |
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| 作者姓名： | ZAN Ling LIU Zhongshi FA Wenjun PENG TianYou |
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| 作者单位： | College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China |
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| 基金项目： | Supported by the Natural Science Foundation of Hubei Province （20：5130835） |
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| 摘 要： | A new kind of polymethyl methacrylate （PMMA）-TiO2 nanocomposite was synthesized through polymerization. The thermal and photic stability of this PMMA TiO2 nanocomposites were investigated. The as prepared samples were characterized by scanning electron microscopy （SEM）, UV-Vis spectroscopy, differential thermal analysis （DTA） and the photo-induced weight loss, The results show that the photostability of the PMMA-TiO2 nanocomposite is higher than that of the pure PMMA under UV-light irradiation, The weight loss of the pure PMMA reaches 30 % after 300 h UVirradiation, while the composite only 0.3% under the identical experimental condition. The glass transition temperature （TR） of pure PMMA is only 80℃, while the Tg of the composite reaches 258℃. Compared with pure PMMA, the thermal stability of the composite is greatly enhanced.
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| 关 键 词： | 聚甲基丙烯酸甲酯 TiO2 PMMA 纳米复合物 热稳定性 光稳定性 |
| 文章编号： | 1007-1202（2006）02-0415-04 |
| 收稿时间： | 2005-03-13 |
A novel polymethyl methacrylate (PMMA)-TiO2 nanocomposite and its thermal and photic stability |
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| ZAN Ling LIU Zhongshi FA Wenjun PENG TianYou.A novel polymethyl methacrylate (PMMA)-TiO2 nanocomposite and its thermal and photic stability[J].Wuhan University Journal of Natural Sciences,2006,11(2):415-418. |
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| Authors: | Zan Ling Liu Zhongshi Fa Wenjun Peng Tianyou |
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| Institution: | (1) College of Chemistry and Molecular Sciences, Wuhan University, 430072 Wuhan, Hubei, China |
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| Abstract: | A new kind of polymethyl methacrylate (PMMA)-TiO2 nanocomposite was synthesized through polymerization. The thermal and photic stability of this PMMA-TiO2 nanocomposites were investigated. The as-prepared samples were characterized by scanning electron microscopy (SEM), UV-Vis
spectroscopy, differential thermal analysis (DTA) and the photo-induced weight loss. The results show that the photostability
of the PMMA-TiO2 nanocomposite is higher than that of the pure PMMA under UV-light irradiation. The weight-loss of the pure PMMA reaches 30%
after 300 h UV-irradiation, while the composite only 0.3% under the identical experimental condition. The glass transition
temperature (T
g) of pure PMMA is only 80°C, while theT
k of the composite reaches 258 °C. Compared with pure PMMA, the thermal stability of the composite is greatly enhanced.
Foundation item: Supported by the Natural Science Foundation of Hubei Province (203130835)
Biography: ZAN Ling(1963-), female, Professor, Ph. D., research direction: photocatalytic of TiO2 nanoparticle. |
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| Keywords: | polymethyl methacrylate (PMMA)-TiO2 nanocomposite polymerization thermal and photic stability |
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