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首页> 外文期刊>High temperature materials and processes >Optical and Thermal Behaviors of Polyamide-Layered Silicate Nanocomposites Based on 4,4′-Azodibenzoic Acid by Solution Intercalation Technique : High Temperature Materials and Processes
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Optical and Thermal Behaviors of Polyamide-Layered Silicate Nanocomposites Based on 4,4′-Azodibenzoic Acid by Solution Intercalation Technique : High Temperature Materials and Processes

机译：溶液插层技术制备的基于4,4'-偶氮二苯甲酸的聚酰胺叠层硅酸盐纳米复合材料的光学和热行为：高温材料和工艺

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摘要

Two new samples of polyamide-montmorillonite reinforced nanocomposites based on 4,4′-azodibenzoic acid were prepared by a convenient solution intercalation technique. Polyamide (PA) 4 as a source of polymer matrix was synthesized by the direct polycondensation reaction of 4,4′-azodibenzoic acid 2 with 4,4′-diamino diphenyl sulfone 3 in the presence of triphenyl phosphate (TPP), CaCl2, pyridine and N-methyl-2-pyrrolidone (NMP). Morphology and structure of the resulting PA-nanocomposite films 4a and 4b with 10 and 20% silicate particles were characterized by FTIR spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of clay dispersion and the interaction between clay and polymeric chains on the properties of nanocomposite films were investigated by using Uv-vis spectroscopy, thermogravimetric analysis (TGA) and water uptake measurements.
机译：通过方便的溶液插层技术制备了两个新的基于4,4'-偶氮二苯甲酸的聚酰胺-蒙脱土增强纳米复合材料样品。在磷酸三苯酯（TPP），氯化钙，吡啶存在下，通过4,4'-偶氮二苯甲酸2与4,4'-二氨基二苯砜3的直接缩聚反应合成了作为聚合物基质来源的聚酰胺（PA）4和N-甲基-2-吡咯烷酮（NMP）。通过FTIR光谱，X射线衍射（XRD）和扫描电子显微镜（SEM）表征得到的具有10％和20％硅酸盐颗粒的PA纳米复合膜4a和4b的形态和结构。通过紫外可见光谱，热重分析（TGA）和吸水率测量研究了粘土分散以及粘土与聚合物链之间的相互作用对纳米复合膜性能的影响。

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