Preparation and Structural Characterization of Polystyrene-Rectorite Nanocomposites
Preparation and Structural Characterization of Polystyrene-Rectorite Nanocomposites作者机构:School of Physics and Technology Wuhan University Wuhan Hubei China
出 版 物:《Wuhan University Journal of Natural Sciences》 (武汉大学学报(自然科学英文版))
年 卷 期:2003年第8卷第3A期
页 面:817-820页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0702[理学-物理学]
基 金:theNationalNaturalScienceFoundationofChina (50 2 730 2 8)
主 题:polystyrene rectorite nanocomposites positron annihilation spectroscopy
摘 要:The polystyrene/rectorite nanocomposites were prepared by free radical polymerization of styrene containing dispersed organophilic rectorite. The structures and thermal properties of these hybrids have been investigated by X\|ray diffraction (XRD), fourier transform infrared (FT\|IR), positron annihilation spectroscopy (PAS) and thermal gravimetric analysis (TGA) techniques. It was found that exfoliation of rectorite in polystyrene (PS) matrix was achieved. The average free\|volume radius in the PS/clay nanocomposites is generally same as that in PS. Along with increment of rectorite contents, the interface between rectorite and polystyrene matrix increases, and the free\|volume concentration decreases obviously. And the polystyrene nanocomposites have higher thermal decomposition temperature than pure PS.