期刊
POLYMER DEGRADATION AND STABILITY
卷 98, 期 12, 页码 2564-2570出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2013.09.017
关键词
POSS/PS nanocomposites; Bridged POSS; Filler-polymer interactions; Thermal stability
The thermal degradation of a series of three novel bridged polyhedral oligomeric silsesquioxanes (PUSS)/polystyrene (PS) nanocomposites, at different FOSS content (3%, 5% and 10%), was studied in both inert (flowing nitrogen) and oxidative (static air) atmospheres, in order to investigate the effects of this new dumbbell-shaped structure on the filler polymer interaction and then on the thermal stability of the obtained materials. Nanocomposites were synthesized by in situ polymerization of styrene in the presence of PUSS which has not polymerizable groups, aiming to obtain well dispersed POSS/PS systems. The actual filler concentration in the obtained nanocomposites was checked by H-1 NMR spectroscopy. Scanning electron microscopy (SEM) and FM spectroscopy evidenced the presence of filler polymer interactions. Degradations were carried out into a thermobalance, in the scanning mode, at various heating rates, and the characteristic parameters of thermal stability, namely temperature at 5% mass loss (T-5%) and the activation energy (E-a) of degradation, of the various nanocomposites were determined. The results were discussed and interpreted. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据