Effects of length and organic modification of attapulgite nanorods on attapulgite/polystyrene nanocomposite via in-situ radical bulk polymerization
Effects of length and organic modification of attapulgite nanorods on attapulgite/polystyrene nanocomposite via in-situ radical bulk polymerization
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DOI：
10.1016/j.clay.2015.06.029
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发表时间：
2016
影响因子：
5.6
通讯作者：
Longxiang Zhu;Jinshan Guo;Peng Liu
中科院分区：
文献类型：
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作者：
Longxiang Zhu;Jinshan Guo;Peng Liu
原位自由基本体聚合技术因其易于大规模生产和优异的界面性能而被证明是无机/聚合物纳米复合材料最有效的策略。然而，这种方法中不可避免的凝胶化可能会对纳米复合材料的加工性能产生负面影响。本文研究了凹凸棒土纳米棒的长度和有机改性对通过原位自由基本体聚合技术合成的凹凸棒土/聚苯乙烯（ATP/PS）纳米复合材料性能的影响。讨论了聚苯乙烯的相对分子量、接枝率 (PG%)、ATP-PS 微凝胶的粒径以及所得 ATP/PS 纳米复合材料的玻璃化转变温度 (Tg)。并通过比较它们的熔融指数(MI)初步研究了ATP/PS纳米复合材料的加工性能。这种理解将有助于更好地设计基于高纵横比纳米材料的高性能无机/聚合物纳米复合材料。
The in-situ radical bulk polymerization technique has been proved to be the most efficient strategy for the inorganic/polymer nanocomposites due to its facile mass-production and excellent interfacial properties. However, the inevitable gelation in this approach might cause negative influence on the processing performance of the nanocomposites. Here, the effects of the length and organic modification of the attapulgite nanorods on the performance of the attapulgite/polystyrene (ATP/PS) nanocomposites synthesized via the in-situ radical bulk polymerization technique were studied. The relative molecular weight of polystyrene, percentage of grafting (PG%), particle size of the ATP-PS micro-gels, and glass transition temperature (Tg) of the resultant ATP/PS nanocomposites were discussed. And the processing property of the ATP/PS nanocomposites was also preliminarily investigated by comparing their melting index (MI). Such understanding would lead to a better design to high-performance inorganic/polymer nanocomposites based on high aspect-ratio nanomaterials.