We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
UV Curing of Perfluoropolyether Oligomers Containing Graphene Nanosheets to Enhance Water-Vapor Barrier Properties.
- Authors
Vitale, Alessandra; Merlo, Simone; Rizza, Giancarlo; Melilli, Giuseppe; Sangermano, Marco
- Abstract
Recently, graphene and its derivative nanosheets have been considered as potential candidates for gas barrier membranes. Here, the effect on the water-vapor barrier properties of incorporating graphene nanoplatelets into a UV-curable perfluoropolyether methacrylic oligomer is investigated. By combining the hydrophobicity of the highly fluorinated polymer with the tortuous path induced by the graphene sheets, the barrier properties of the crosslinked films are further enhanced, acting both on the thermodynamic (low solubility) and kinetic (longer diffusion path) contribution of the water-vapor diffusion through the polymeric films. Good performance in increasing water-vapor barrier properties at a very low filler loading is obtained: the permeability is halved in the presence of only 0.3 wt% graphene.
- Subjects
GRAPHENE synthesis; RADIATION curing; PERFLUORO compounds; OLIGOMERS; WATER vapor
- Publication
Macromolecular Chemistry & Physics, 2014, Vol 215, Issue 16, p1588
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201400225