Ionic Liquids as Surfactants for Layered Double Hydroxide Fillers: Effect on the Final Properties of Poly(Butylene Adipate-Co-Terephthalate).

Nanomaterials (Basel)

Univ Lyon, INSA Lyon, UMR CNRS 5223, IMP Ingénierie des Matériaux Polymères, F-69621 Villeurbanne, France.

Published: September 2017

AI Article Synopsis

  • Phosphonium ionic liquids (ILs) were utilized for the organic modification of layered double hydroxide (LDH) using tetra-alkylphosphonium cations paired with different anions.
  • Two concentrations (2 and 5 wt %) of these modified LDHs were blended into a poly(butylene adipate-terephthalate) (PBAT) matrix via melt extrusion.
  • The resulting PBAT/IL-modified-LDH composites demonstrated improved mechanical properties, reduced water vapor permeability, and slightly decreased crystallinity compared to pure PBAT.

Article Abstract

In this work, phosphonium ionic liquids (ILs) based on tetra-alkylphosphonium cations combined with carboxylate, phosphate and phosphinate anions, were used for organic modification of layered double hydroxide (LDH). Two different amounts (2 and 5 wt %) of the organically modified LDHs were mixed with poly(butylene adipate--terephthalate) (PBAT) matrix by melt extrusion. All prepared PBAT/IL-modified-LDH composites exhibited increased mechanical properties (20-50% Young's modulus increase), decreased water vapor permeability (30-50% permeability coefficient reduction), and slight decreased crystallinity (10-30%) compared to the neat PBAT.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666462PMC
http://dx.doi.org/10.3390/nano7100297DOI Listing

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