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首页> 外文期刊>chemistryselect >Preparation and Properties of Nanoclay Reinforced High-Performance Functional Poly(Itaconic Anhydride-co-Acrylamide) Nanomaterials
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Preparation and Properties of Nanoclay Reinforced High-Performance Functional Poly(Itaconic Anhydride-co-Acrylamide) Nanomaterials

机译:纳米粘土增强高性能功能聚(衣康酸酐-共丙烯酰胺)纳米材料的制备及性能

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In this work, poly(itaconic anhydride-co-acrylamide) copolymer was synthesized by free radical solution copolymerization and poly(itaconic anhydride-co-acrylamide)/nanoclay nanocomposites were prepared by in situ interlamellar copolymerization with three different loading of nanoclay. Intercalation and formation of nanostructures were clarified by spectroscopic techniques. The interaction/compatibility between nanoclay and the copolymer was verified by following the characteristic bands of nanoclay and functional groups in the ATR-FTIR spectra. The increase in d-spacing between silicate layers in nanocomposites was determined from XRD analysis. The thermal and viscoelastic properties of nanomaterials and the effect of simultaneous addition of nanofiller were evaluated by thermogravimetric and dynamic mechanical analysis. It was observed that nanocomposites reinforced with nanoclay had higher thermal stability than pristine poly(itaconic anhydride-co-acrylamide) and thermal stability increased proportionally with amount of nanoclay loaded. The improvement effect of the incorporated nanoclay on the storage modulus was observed at higher temperature values for the nanocomposite loaded with 4 nanoclay.
机译:本工作采用自由基溶液共聚法合成了聚衣康酸酐-共丙烯酰胺共聚物,并采用3种不同负载的纳米粘土原位层间共聚法制备了聚衣康酸酐-共丙烯酰胺/纳米粘土纳米复合材料。通过光谱技术阐明了纳米结构的嵌入和形成。通过在ATR-FTIR光谱中遵循纳米粘土和官能团的特征带,验证了纳米粘土与共聚物之间的相互作用/相容性。通过XRD分析确定了纳米复合材料中硅酸盐层之间d间距的增加。通过热重和动态力学分析,评价了纳米材料的热弹性和粘弹性以及同时添加纳米填料的效果。结果表明,纳米粘土增强的纳米复合材料比纯聚衣康酸酐-共丙烯酰胺具有更高的热稳定性,且热稳定性随纳米粘土负载量的增加成比例增加。在较高温度值下,添加4 %纳米粘土的纳米复合材料对储能模量的改善效果。

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