Synthesis and characterization of intercalated ladder-like poly(vinylsilsesquioxanes)/organically modified montmorillonite nanocomposites
Synthesis and characterization of intercalated ladder-like poly(vinylsilsesquioxanes)/organically modified montmorillonite nanocomposites
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DOI：
10.1002/pc.20258
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发表时间：
2006-12
影响因子：
5.2
通讯作者：
Lei Liu;Lei Song;Yuan Hu;Hao Chen
中科院分区：
文献类型：
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作者：
Lei Liu;Lei Song;Yuan Hu;Hao Chen
本文采用超声分散和溶液共混法制备了梯状聚乙烯硅氧烷(LPVS)/有机改性蒙脱土（OMT）纳米复合材料。利用小角x射线散射（SAXS）和高分辨率透射电镜（TEM）对纳米复合材料的结构进行了表征。这些结果表明，LPVS已经进入了OMT层的通道，并形成了插层的LPVS/OMT纳米复合材料。讨论了不同反应条件对超声波分散的影响，包括溶液浓度和超声波分散的优点。为了消除OMT中的表面活性剂，将嵌入的纳米复合材料在250.0℃下进一步处理2 h。根据SAXS和TGA的结果，发现处理后的产物仍然保持其插层结构，并且具有更好的热稳定性，这在聚合物复合材料中具有潜在的应用前景。变异较大。心神。中文信息学报，27:669 - 664,2006。©2006塑料工程师协会
In this paper, ladder-like poly(vinylsilsesquioxanes) (LPVS)/organically modified montmorillonite (OMT) nanocomposites have been synthesized by ultrasonic dispersion and solution blending method. The structures of nanocomposites are characterized by small angle X-ray scattering (SAXS) and high-resolution transmission electronic microscopy (TEM). These results indicate that LPVS have already entered the galleries of OMT layers and intercalated LPVS/OMT nanocomposites have been formed. The effects of different reaction conditions, including solution concentration and the advantage of ultrasonic dispersion, are discussed. The intercalated nanocomposite is further treated at 250.0°C for 2 h in order to eliminate surfactant in OMT. On the basis of the SAXS and TGA results, it has been found that the treated product remains in its intercalated structure and presents better thermal stability, which provides potential usage in polymer composites. POLYM. COMPOS., 27: 660–664, 2006. © 2006 Society of Plastics Engineers