Vukicevic, R. ; Pospiech, D. ; Korwitz, A. ; Stoyanov, H. ; Kofod, G. ; Vukovic, I. ; ten Brinke, G. ; Beuermann, S.
Poly(vinylidene fluoriede)-functionalized single-walled carbon nanotubes for the preparation of composites with improved conductivity
The surface of single-walled carbon nanotubes (SWCNTs) was functionalized with azide-terminated poly(vinylidene fluoride) (PVDF). Functionalization was confirmed by dispersibility, Raman spectroscopy, and thermogravimetric analyses. Raman spectra show disordering of the SWCNTs, thus, strongly suggesting that PVDF was covalently attached to SWCNTs. Functionalized SWCNTs were mixed with commercially available PVDF in a twin-screw extruder and thin films were obtained by melt-pressing. Films containing 0.5 and 1 wt% PVDF-functionalized SWCNTs exhibited significantly improved electrical conductivity compared to PVDF films containing pristine SWCNTs.
Quelle
Polymer Chemistry 3, 2261-2265
DOI
http://dx.doi.org/10.1039/C2PY20166F
Erschienen am
July 2012
Poly(vinylidene fluoriede)-functionalized single-walled carbon nanotubes for the preparation of composites with improved conductivity
The surface of single-walled carbon nanotubes (SWCNTs) was functionalized with azide-terminated poly(vinylidene fluoride) (PVDF). Functionalization was confirmed by dispersibility, Raman spectroscopy, and thermogravimetric analyses. Raman spectra show disordering of the SWCNTs, thus, strongly suggesting that PVDF was covalently attached to SWCNTs. Functionalized SWCNTs were mixed with commercially available PVDF in a twin-screw extruder and thin films were obtained by melt-pressing. Films containing 0.5 and 1 wt% PVDF-functionalized SWCNTs exhibited significantly improved electrical conductivity compared to PVDF films containing pristine SWCNTs.
Quelle
Polymer Chemistry 3, 2261-2265
DOI
http://dx.doi.org/10.1039/C2PY20166F
Erschienen am
July 2012
