Water-dispersible graphene stabilized by PVA grafted graphene and its poly (vinyl alcohol) nanocomposites

Songmin Shang, Lu Gan, Chun Wah Marcus Yuen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Polymer-based nanocomposites are the subject of increased interest in the last decades because of their enhanced properties arising from the reinforcement of fillers. In this study, we have synthesized poly (vinyl alcohol) (PVA) functionalized graphene oxide (f-G) by esterification reaction and used this f-G to stabilize the dispersion of graphene in water. Finally, we used the f-G stabilized graphene to prepare PVA nanocomposite. The fourier transform infrared (FT-IR) and X-ray diffraction results showed that PVA was successfully covalently attached to graphene oxide. The UV-vis spectrum showed the synthesized f-G was able to disperse graphene and form stable aqueous graphene dispersion. With the assistance of f-G, graphene was able to homogeneously incorporate into PVA matrix without destroying the crystal structure of PVA, which could be investigated from scanning electron microscrpy (SEM) images and X-ray diffraction (XRD) patterns.
Original languageEnglish
Title of host publicationTechnical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014
PublisherNano Science and Technology Institute
Pages388-391
Number of pages4
Volume1
ISBN (Print)9781482258264
Publication statusPublished - 1 Jan 2014
EventNanotechnology 2014: Graphene, CNTs, Particles, Films and Composites - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014 - Washington, DC, United States
Duration: 15 Jun 201418 Jun 2014

Conference

ConferenceNanotechnology 2014: Graphene, CNTs, Particles, Films and Composites - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014
CountryUnited States
CityWashington, DC
Period15/06/1418/06/14

Keywords

  • Functionalizaton
  • Graphene
  • Improved dispersion
  • Poly (vinyl alcohol)
  • Polymer nanocomposite

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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