Thermal properties of poly(ethylene succinate) nanocomposite
Thermal properties of poly(ethylene succinate) nanocomposite
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DOI：
10.1016/j.polymer.2009.07.025
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发表时间：
2009-09
期刊：
影响因子：
4.6
通讯作者：
S. Ray;M. Makhatha
中科院分区：
文献类型：
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作者：
S. Ray;M. Makhatha
本文介绍了含粘土的聚丁二酸乙二醇酯（PES）纳米复合材料的热性能。采用溶液插层成膜法制备了聚醚砜（PES）/有机改性蒙脱土（O-MMT）纳米复合材料。小角X-射线散射图案和透射电子显微镜观察表明，在PES矩阵中的硅酸盐层的均匀分散。用差示扫描量热仪、偏光显微镜和广角X射线散射研究了PES基体在分散硅酸盐层存在下的结晶和熔融行为。结果表明，蒙脱土的加入阻止了PES基体的过冷效应，并显著促进了PES基体的成核和晶体生长机制。蒙脱土的加入也显著提高了纯聚醚砜的热稳定性。
This article describes the thermal properties of clay-containing poly(ethylene succinate) (PES) nanocomposite. The nanocomposite of PES with organically modified montmorillonite (o-mmt) has been prepared by solution-intercalation-film-casting technique. Small-angle X-ray scattering patterns and transmission electron microscopy observations show the homogeneous dispersion of silicate layers in the PES matrix. The crystallization and melting behaviors of the PES matrix in the presence of dispersed silicate layers have been studied by differential scanning calorimeter, polarized optical microscope, and wide-angle X-ray scattering. Results show that the incorporation of o-mmt stops the super-cooling effect and accelerates the mechanism of nucleation and crystal growth of PES matrix significantly. The incorporation of o-mmt also improves the thermal stability of neat PES dramatically.