Article ID Journal Published Year Pages File Type
607976 Journal of Colloid and Interface Science 2012 7 Pages PDF
Abstract

Ionic liquids based on tetraalkylphosphonium salts combined with different anions (decanoate and dodecylsulfonate) have been used as intercalating agents of layered double hydroxides (LDHs) by ion exchange. The synthesized phosphonium-treated LDHs display a dramatically improved thermal degradation and a significant increase in the interlayer distance as confirmed by thermogravimetric analysis (TGA) and X-ray Diffraction (XRD), respectively. To highlight the effect of thermostable ionic liquids, a very low amount of LDHs has been introduced within a polylactide (PLA) matrix and PLA/LDHs nanocomposites have been processed in melt by twin-screw extrusion. Then, transmission electron microscopy (TEM) analysis has been used to investigate the influence of ILs on the different morphologies of these nanocomposites. Even though the thermal stability of PLA matrix decreased, an excellent stiffness–toughness compromise has been obtained.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (342 K)Download as PowerPoint slideHighlights► Synthesis of new inorganic–organic fillers. ► Preparation of thermostable ionic liquid (IL) treated layered double hydroxides. ► Improvement of mechanical properties of nanocomposites.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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