Dispersion and interaction of graphene oxide in amorphous and semi-crystalline nano-composites: a PALS study

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The influence of dispersion and interaction of Graphene Oxide (GO) in semi-crystalline Polyhydroxy butyrate (PHB) and glassy amorphous Poly(tBP-oda) is explored by Positron Annihilation Lifetime Spectroscopy (PALS). The ortho-Positronium lifetimes which represent the main free volume hole size of both polymers are mainly affected by the large differences in internal stresses built up by the shrinkage of the polymers during their preparation, restricted by the platelet structure of GO. The ortho-Positronium intensities, which represent the ortho-Positronium formation probabilities, suggest a strong dependency of on the dispersion of the nano-particles and their aspect ratio.

Details

Authors
  • Frans Maurer
  • Carlos Rodriguez Arza
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Polymer Chemistry
Original languageEnglish
Title of host publication11th International Workshop on Positron and Positronium Chemistry (PPC-11)
PublisherIOP Publishing
Pages012020
Volume618
Publication statusPublished - 2015
Publication categoryResearch
Peer-reviewedYes
Event11th International Workshop on Positron and Positronium Chemistry (PPC) - Goa, INDIA
Duration: 2014 Nov 92014 Nov 14

Publication series

Name
Volume618
ISSN (Print)1742-6588
ISSN (Electronic)1742-6596

Conference

Conference11th International Workshop on Positron and Positronium Chemistry (PPC)
Period2014/11/092014/11/14

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)