標題: Thermal properties of polystyrene nanocomposites formed from rigid intercalation agent-treated montmorillonite
作者: Yei, Ding-Ru
Fu, Hue-Kuan
Chang, Yu-Hsin
Kuo, Shiao-Wei
Huang, Jieh-Ming
Chang, Feng-Chih
應用化學系
Department of Applied Chemistry
關鍵字: anamantane;nanocomposites;polystyrene
公開日期: 15-Jul-2007
摘要: Polystyrene (PS)/clay nanocomposites were prepared with two different new intercalation organophilic clays, the phosphonium salt (APP) and the ammonium 4-(4-adamantylphenoxy)-1-butanamine (APB) salts, by emulsion polymerization technique. X-ray diffraction and transmission electron microscopy were performed to characterize the layered structures of APB- and APP-treated polymer-clay nanocomposites, and both resulted in exfoliated structures. Molecular weights of PS obtained from these nanocomposites are slightly lower than the virgin PS formed under similar polymerization conditions. Coefficient of thermal expansion showed approximately a 44-55% decrease for APB- and APP-intercalated clay nanocomposites relative to the pure PS. Both T-g and thermal decomposition temperature of the PS component in the nanocomposite are higher than the virgin PS, implying that the presence of clay is able to enhance thermal stabilities of the PS. (c) 2007 Wiley Periodicals, Inc.
URI: http://dx.doi.org/10.1002/polb.21212
http://hdl.handle.net/11536/10559
ISSN: 0887-6266
DOI: 10.1002/polb.21212
期刊: JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume: 45
Issue: 14
起始頁: 1781
結束頁: 1787
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