Abstract
Poly(vinyl alcohol) (PVA) composites containing graphene oxide (GO) functionalized with PVA were synthesized via the esterification of the carboxylic groups of GO. The presence of PVA-grafted GO (PVA-g-GO) in the PVA matrix induced strong interactions between the chains of the PVA matrix and allowed the PVA-g-GO to be uniformly dispersed throughout the matrix. The grafting of PVA to GO increased the gas barrier properties of the GO/PVA composites because of the increased compatibility between GO and PVA. The PVA-g-GO/PVA composites were used to coat the surface of poly(ethylene terephthalate) films. These coated films exhibited excellent gas barrier properties; the film containing 0.3 wt% of PVA-g-GO had an oxygen transmission rate (OTR) of 0.025 cc/(m2·day) and an optical transmittance of 83.8%. As a result, PVA-g-GO/PVA composites that exhibited enhanced gas barrier properties were prepared with a solution mixing method.
Original language | English |
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Pages (from-to) | 8348-8352 |
Number of pages | 5 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 15 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2015 |
Bibliographical note
Publisher Copyright:Copyright © 2015 American Scientific Publishers All rights reserved.
Keywords
- Compatibility
- Gas barrier films
- Graphene oxide
- Oxygen transmission Rate
- Poly(vinyl alcohol)