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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of resol-layered silicate nanocomposites by reaction exfoliation with acid-modified montmorillonite
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Synthesis of resol-layered silicate nanocomposites by reaction exfoliation with acid-modified montmorillonite

机译：酸改性蒙脱土的反应剥落法合成可熔层的硅酸盐纳米复合材料

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摘要

Resol-layered silicate nanocomposites were prepared by the intercalative polymerization of phenol and formaldehyde in the presence of acid-modified montmorillonite (HMMT). The nanocomposites were studied by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, dynamic mechanical analysis (DMA), and rheological measurements. The exfoliation of HMMT was promoted by the intragallery reactions catalyzed by protons in the galleries of the clay, whereas the extragallery polymerization catalyzed by ammonia went on simultaneously. The nanocomposites showed higher glass-transition temperatures in the DMA diagram compared with the resol counterparts. The impact strength was improved significantly by the incorporation of the clay. (C) 2004 Wiley Periodicals, Inc. [References: 23]
机译：在酸改性的蒙脱石（HMMT）存在下，通过苯酚和甲醛的插层聚合反应制备可熔的层状硅酸盐纳米复合材料。通过X射线衍射，扫描电子显微镜，透射电子显微镜，动态力学分析（DMA）和流变学测量研究了纳米复合材料。 HMMT的剥落是由质子在粘土画廊中催化的画廊内反应促进的，而氨催化的画廊外聚合则同时进行。与可熔酚醛树脂对应物相比，纳米复合物在DMA图中显示出更高的玻璃化转变温度。通过掺入粘土，冲击强度显着提高。 （C）2004 Wiley Periodicals，Inc. [参考：23]

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