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Ambient-temperature waterborne polymer/rGO nanocomposite films: effect of rGO distribution on electrical conductivity

Fadil, Y, Dinh, LNM, Yap, MOY, Kuchel, RP, Yao, Y, Omura, T, Aregueta-Robles, UA, Song, N, Huang, S, Jasinski, F, Thickett, SC ORCID: 0000-0002-8168-3856, Minami, H, Agarwal, V and Zetterlund, PB 2019 , 'Ambient-temperature waterborne polymer/rGO nanocomposite films: effect of rGO distribution on electrical conductivity' , ACS Applied Materials and Interfaces, vol. 11, no. 51 , pp. 48450-48458 , doi: 10.1021/acsami.9b19183.

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Abstract

Copyright © 2019 American Chemical Society. Electrically conductive polymer/rGO (reduced graphene oxide) films based on styrene and n-butyl acrylate are prepared by a variety of aqueous latex based routes involving ambient temperature film formation. Techniques based on miniemulsion polymerization using GO as surfactant and "physical mixing" approaches (i.e., mixing an aqueous polymer latex with an aqueous GO dispersion) are employed, followed by heat treatment of the films to convert GO to rGO. The distribution of GO sheets and the electrical conductivity depend strongly on the preparation method, with electrical conductivities in the range 9 × 10-4 to 3.4 × 102 S/m. Higher electrical conductivities are obtained using physical mixing compared to miniemulsion polymerization, which is attributed to the former providing a higher level of self-alignment of rGO into larger linear domains. The present results illustrate how the distribution of GO sheets within these hybrid materials can to some extent be controlled by judicious choice of preparation method, thereby providing an attractive means of nanoengineering for specific potential applications.

Item Type: Article
Authors/Creators:Fadil, Y and Dinh, LNM and Yap, MOY and Kuchel, RP and Yao, Y and Omura, T and Aregueta-Robles, UA and Song, N and Huang, S and Jasinski, F and Thickett, SC and Minami, H and Agarwal, V and Zetterlund, PB
Keywords: graphene oxide, surface coatings, electrical conductivity, latex nanoparticles
Journal or Publication Title: ACS Applied Materials and Interfaces
Publisher: American Chemical Society
ISSN: 1944-8244
DOI / ID Number: 10.1021/acsami.9b19183
Copyright Information:

Copyright 2019 American Chemical Society

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