27 August 2003 Photoluminescence quenching and degradation studies to determine the effect of nanotube inclusions on polymer morphology in conjugated polymer-carbon nanotube composites
Author Affiliations +
Abstract
The change in morphology of a polymer matrix upon the introduction of carbon nanotubes is characterized in this study. Multi-walled carbon nanotubes were dispersed in the conjugated copolymer poly(m-phenylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene) (PmPV) to produce a composite material. Photoluminescence (PL) measurements show a reduction in PL efficiency as the nanotube content is increased. Electron microscopy studies have shown an ordering of the polymer around the nanotubes allowing a layer thickness of 25nm to be estimated. This observed thickness agrees well with the expected value of 55nm calculated using a model relating the PL decrease to the changes in conformation that result from polymer - nanotube interactions. Differential Scanning Calorimetry (DSC) and Fourier Transform Infrared Spectroscopy (FTIR) techniques have been employed to investigate how the polycrystallinity of the polymer is affected due to the presence of nanotubes. The results indicate an increase in polymer crystallinity occurs due to an interfacial interaction between the polymer and the nanotube.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kevin P. Ryan, Stephen M. Lipson, Sean M. O'Flaherty, Valerie Barron, Martin Cadek, Anna Drury, Hugh James Byrne, R. P. Wool, Werner J. Blau, Jonathan N. Coleman, "Photoluminescence quenching and degradation studies to determine the effect of nanotube inclusions on polymer morphology in conjugated polymer-carbon nanotube composites", Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); doi: 10.1117/12.463719; https://doi.org/10.1117/12.463719
PROCEEDINGS
8 PAGES


SHARE
Back to Top