'New tailor-made biopolymers produced from lignocellulosic sugars waste for highly demanding fire-resistant applications'

TECHNICAL ARTICLE
Biopolyester‐based nanocomposites: Structural, thermo‐mechanical and biocompatibility characteristics of poly(3‐hydroxybutyrate)/montmorillonite clay nanohybrids

Department of Chemical and Petroleum Engineering, United Arab EmiratesUniversity, Al Ain, UAE

*Correspondence to: I. Zuburtikudis (E‐mail: izub@teikoz.gr or ioannis.z@uaeu.ac.ae)

  1. Logo of funding program, Heracleitos II.

Publication History
  1. Issue published online: 15 DEC 2014
  2. Article first published online: 14 NOV 2014
  3. Manuscript Accepted: 12 OCT 2014
  4. Manuscript Received: 14 JUL 2014
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SEARCH BY CITATION Volume: Issue: Page: ARTICLE TOOLS View Full Article (HTML) Enhanced Article (HTML) Get PDF (1621K) Keywords:
  • biocompatibility;
  • clay;
  • composites;
  • extrusion;
  • properties and characterization
ABSTRACT

In this work, the structural, thermal, mechanical, and biocompatibility characteristics of biopolyester‐based nanocomposites with phyllosilicate clays, namely those of poly(3‐hydroxybutyrate) (PHB) with octadecylamine‐modified montmorillonite (C18MMT), are reported. PHB/clay nanocomposites with various loadings were prepared by melt mixing. X‐ray diffraction measurements and transmission electron microscopy images revealed the coexistence of intercalated and exfoliated states in the produced nanocomposites. Atomic force microscopy imaging also shed light to the morphological characteristics of the pure PHB and the prepared nanocomposites. The thermal stability of the nanohybrid materials was improved with the 5 wt % loading nanocomposite to show the best improvement. In addition, the nanohybrids have lower melting point compared to pure PHB and enhanced storage modulus (E′). Finally, the biocompatibility of pristine PHB and the 5 wt % nanocomposite was assessed by studying the morphology and proliferation of osteoblast cells attached on their surfaces. The results after 3 and 7 days of cell culturing indicate the incorporation of nanoclays does not change the cell adhesion and spreading as compared to those on pure PHB. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41628.

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» Author: Elpiniki Panayotidou1,2, Anthoula Kroustalli3, Apostolos Baklavaridis1, Ioannis Zuburtikudis1,†,*, Dimitris S. Achilias2 andDespoina Deligianni3

» Reference: Journal of Applied Polymer ScienceVolume 132, Issue 11, March 15, 2015

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This project has received funding from the European Unionís Seventh Framework Programme for research, technological development and demonstration