PMMA-TiO2有机无机杂化玻璃的制备与表征

被引:14
作者
张隽
罗胜成
桂琳琳
唐有祺
机构
[1] 北京大学化学与分子工程学院物理化学研究所!北京,北京大学化学与分子工程学院物理化学研究所!北京,北京大学化学与分子工程学院物理化学研究所!北京,北京大学化学与分子工程学院物理化学研究所!北京
关键词
有机无机杂化材料; 聚甲基丙烯酸甲酯; 二氧化钛; 溶胶凝胶方法; 热致变色效应;
D O I
暂无
中图分类号
O648 [胶体化学(分散体系的物理化学)];
学科分类号
摘要
Poly(methyl methacrylate)-titania hybrid glasses were synthesized by sol-gel processes using acrylic acid or allyl acetylacetone as coupling agent. Titanium butoxide modified with acrylic acid (or titanium isopropoxide modified with allyl acetylacetone) was hydrolyzed to produce a titania network, and then poly(methyl methacrylate) (PMMA)chains formed in situ through a radical polymerization were chendcally bonded to the fortheng titania network to synthesize a hybrid glass. Transparent hybrid glasses with different contents of titania were achieved. With the increase of the titania content, the color of the products changed from yellow to red. The synthesis process was investigated stepwise by using FTIR spectroscopies, and the experimental results demonstrated that acrylic or acetylacetonate groups bound to titanium remain in the final hybrid glasses.The thermal stability of the hybrid materials were considerably improved relative to pure PMMA. The hybrid glasses using allyl acetylacetone as coupling agent exhibited ther mochromatic effect which both pure PMMA and titan ia do not manifest.
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页码:289 / 292
页数:4
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[1]  
红外光谱实用指南.[M].荆煦瑛等编著;.天津科学技术出版社.1992,