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Polymers 2018, 10(1), 44;

Ionic Liquid as Surfactant Agent of Hydrotalcite: Influence on the Final Properties of Polycaprolactone Matrix

University of Lyon, F-69003 Lyon, France
UMR 5223, Department of Engineering of Polymeric Materials, INSA Lyon, CNRS, F-69621 Villeurbanne, France
Department of Industrial Engineering, University of Salerno-via Giovanni Paolo II, 132, 84084 Fisciano (Salerno), Italy
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 15 December 2017 / Accepted: 29 December 2017 / Published: 5 January 2018
(This article belongs to the Special Issue Processing-Structure-Properties Relationships in Polymers)
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This paper reports the surface treatment of layered double hydroxide (LDH) by using ionic liquid (IL) composed of phosphonium cation combined with 2-ethylhexanoate (EHT) counter anion as surfactant agent. Then, different amounts (1, 3, 5 and 7 wt %) of thermally stable organically modified LDH (up to 350 °C) denoted LDH-EHT were incorporated into polycaprolactone (PCL) matrix by mechanical milling. The influence of LDH-EHT loading has been investigated on the physical properties, such as the thermal and barrier properties, as well as the morphologies of the resulting nanocomposites. Thus, intercalated or microcomposite morphologies were obtained depending on the LDH-EHT loading, leading to significant reduction of the diffusion coefficient respect to water vapor. The modulation of barrier properties, using low functionalized filler amount, is a very important aspect for materials in packaging applications. View Full-Text
Keywords: polycaprolactone; layered double hydroxides; ionic liquids polycaprolactone; layered double hydroxides; ionic liquids

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Lins, L.C.; Bugatti, V.; Livi, S.; Gorrasi, G. Ionic Liquid as Surfactant Agent of Hydrotalcite: Influence on the Final Properties of Polycaprolactone Matrix. Polymers 2018, 10, 44.

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