Fabrication and Characterization of Ultrathin Graphene Oxide/Poly(Vinyl Alcohol) Composite Films via Layer-by-Layer Assembly |
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| Authors: | Xiaoyan Wang Tianxi Liu |
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| Affiliation: | Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Laboratory of Advanced Materials , Fudan University , Shanghai , P. R. China |
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| Abstract: | Novel multilayer ultrathin films comprised of graphene oxide (GO) and poly(vinyl alcohol) (PVA) were fabricated through a layer-by-layer (LBL) assembly technique. GO could self-assemble onto quartz substrates alternately with PVA via hydrogen-bonding interactions. X-ray diffraction, atomic force microscopy, and transmission electron microscopy analysis revealed that GO was exfoliated to monolayers. The ultrathin films, with PVA/GO multilayer structures fabricated by LBL assembly, were characterized by ultraviolet-visible spectroscopy and X-ray diffraction analysis, confirming that the assembly of the multilayer films was quantitative and reproducible. |
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| Keywords: | graphene oxide hydrogen bonding layer-by-layer assembly poly(vinyl alcohol) |
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