Polyaniline as potential radical scavenger for ultra-high molecular weight polyethylene

Frédéric Addiego, Iulia Mihai, David Marti, Kui Wang, Valérie Toniazzo, David Ruch

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Novel ultra-high molecular weight polyethylene (UHMWPE) composites were processed by micro-extrusion with polyaniline (PANI) as potential reinforcing and radical scavenging agent and with lauryl gallate (LG) as coupling agent. By means of UV-vis spectroscopy, it was found that the presence of PANI reduced at maximum by 27.3% the concentration in free radicals of a 2,2-dimethyl-1-picrylhydrazyl (DPPH) solution in which was immersed the composite. This result was obtained with the UHMWPE/LG/PANI weight composition 89/1/10, which also demonstrated to retain the viscoelastic and tensile properties of neat UHMWPE. The dispersion of PANI micro-particles within the UHMWPE matrix may be an alternative to the stabilization step of crosslinked UHMWPE used in joint prosthesis.

Original languageEnglish
Pages (from-to)196-202
Number of pages7
JournalSynthetic Metals
Volume198
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Fingerprint

Ultrahigh molecular weight polyethylenes
Polyaniline
polyethylenes
molecular weight
gallates
Joint prostheses
composite materials
tensile properties
Coupling agents
Scavenging
scavenging
Composite materials
Ultraviolet spectroscopy
Free radicals
Tensile properties
free radicals
Free Radicals
Extrusion
Stabilization
stabilization

Keywords

  • Biomaterials
  • Composites
  • Polyaniline
  • Reinforcement
  • UV-vis spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Polyaniline as potential radical scavenger for ultra-high molecular weight polyethylene. / Addiego, Frédéric; Mihai, Iulia; Marti, David; Wang, Kui; Toniazzo, Valérie; Ruch, David.

In: Synthetic Metals, Vol. 198, 01.01.2014, p. 196-202.

Research output: Contribution to journalArticle

Addiego, Frédéric ; Mihai, Iulia ; Marti, David ; Wang, Kui ; Toniazzo, Valérie ; Ruch, David. / Polyaniline as potential radical scavenger for ultra-high molecular weight polyethylene. In: Synthetic Metals. 2014 ; Vol. 198. pp. 196-202.
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