A Novel Polymethyl Methacrylate （PMMA）TiO2 Nanocomposite and Its Thermal and Photic Stability

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, differen...

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Bibliographic Details
Published inWuhan University journal of natural sciences Vol. 11; no. 2; pp. 415 - 418
Main Author ZAN Ling LIU Zhongshi FA Wenjun PENG TianYou
Format Journal Article
LanguageEnglish
Published 2006
Subjects
PMMA
TiO2
光稳定性
热稳定性
纳米复合物
聚甲基丙烯酸甲酯
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Summary: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.
Bibliography:polymethyl methacrylate （ PMMA ）-TiO2 nanoeomposite; polymerization; thermal and photic stability
polymerization
O643
polymethyl methacrylate （ PMMA ）-TiO2 nanoeomposite
thermal and photic stability
42-1405/N
ISSN:1007-1202
1993-4998