| 12-硅钨酸/PMMA复合薄膜的制备及光致变色性能 |
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| 引用本文： | 尹荣,关晓晖,赵吉丽,龚剑. 12-硅钨酸/PMMA复合薄膜的制备及光致变色性能[J]. 高分子材料科学与工程, 2011, 0(4): 155-158 |
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| 作者姓名： | 尹荣 关晓晖 赵吉丽 龚剑 |
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| 作者单位： | 北华大学化学与生物学院;东北电力大学化学工程学院;东北师范大学化学学院 |
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| 基金项目： | 教育部归国留学基金资助项目(2003406);吉林省自然科学基金资助项目(2003050524) |
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| 摘 要： | 采用流延法制备了一系列不同配比的硅钨酸(H3SiW12O40)/聚甲基丙烯酸甲酯(PMMA)复合薄膜。用红外光谱(IR)和X射线衍射(XRD)对所制得的薄膜进行了表征。IR分析结果表明,所得复合薄膜材料中仍然保持着完好的Keggin结构,多酸H3SiW12O40与PMMA分子间以氢键的形式结合,并随着多酸含量的增加氢键逐渐加强;XRD分析表明,复合薄膜材料整体呈无定型态,并且复合材料短程有序的层间距离随多酸浓度的增加而减小。用UV光谱对复合薄膜光致变性能进行了研究,结果表明,杂多酸和PMMA之间发生了氧化还原反应并随多酸含量的增加,多酸与PMMA之间的作用增强。
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| 关 键 词： | 12-硅钨酸 聚甲基丙烯酸甲酯 复合薄膜 光致变色 |
Preparation and Photochromic Properties of H3SiW12O40/PMMA Composite Films |
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| Rong Yi,Xiaohui Guan,Jili Zhao,Jian Gong. Preparation and Photochromic Properties of H3SiW12O40/PMMA Composite Films[J]. Polymer Materials Science & Engineering, 2011, 0(4): 155-158 |
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| Authors: | Rong Yi Xiaohui Guan Jili Zhao Jian Gong |
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| Affiliation: | 1.Department of Chemistry and Biology,Beihua University,Jilin 132013,China;2.College of Chemical Engineering,Northeast Dianli University,Jilin 132012,China;3.Faculty of Chemistry,Northeast Normal University,Changchun 130024,China) |
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| Abstract: | A series of 12-silicotungstic acid(H3SiW12O40)/polymethyl methacrylate(PMMA) composite films with different ratio of mass fraction were prepared by the cast.The composite films were characterized by means of infrared(IR) spectroscopy and X-ray power diffraction(XRD).The IR results show that the multi acid remains intact Keggin structure in the composite films,formed hydrogen bonds between H3SiW12O40 and PMMA molecules are gradually strengthen with the increase of acid content.The composite material shows amorphous state,and the layer′s distanc of short distance order in this compound materials is reduced as the increase of multi-acid concentrations through the XRD spectrum analysis.The redox reaction occurs in the 12-silicotungstic acid and PMMA,and the function enhances with the increase of the silicotungstic acid contents by UV spectrum. |
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| Keywords: | 12-silicotungstic acid PMMA composite films photochromic |
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