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Title: Functionalization and reduction of graphene oxide with p-phenylene diamine for electrically conductive and thermally stable polystyrene composites
Authors: Ma, Hui-Ling
Zhang, Hao-Bin
Hu, Qi-Hui
Li, Wen-Juan
Jiang, Zhi-Guo
Yu, Zhong-Zhen
Dasari, Aravind
Issue Date: 2012
Source: Ma, H.-L., Zhang, H.-B., Hu, Q.-H., Li, W.-J., Jiang, Z.-G., Yu, Z.-Z. (2012). Functionalization and Reduction of Graphene Oxide with p-Phenylene Diamine for Electrically Conductive and Thermally Stable Polystyrene Composites. ACS Applied Materials & Interfaces, 4(4), 1948-1953.
Series/Report no.: ACS applied materials & interfaces
Abstract: A facile and efficient approach was developed to simultaneously functionalize and reduce graphene oxide (GO) with p-phenylene diamine (PPD) by simple refluxing. This was possible by the nucleophilic substitution reaction of epoxide groups of GO with amine groups of PPD aided by NH3 solution. As a consequence, electrical conductivity of GO-PPD increased to 2.1 × 102 S/m, which was nearly 9 orders of magnitude higher than that of GO. Additionally, after the incorporation of GO-PPD in polystyrene (PS), the composites exhibited a sharp transition from electrically insulating to conducting behavior with a low percolation threshold of 0.34 vol %, which was attributed to the improved dispersion and the reduction of GO-PPD. Thermal stability of the PS/GO-PPD composite was also 8 °C higher than that of PS.
ISSN: 1944-8244
DOI: 10.1021/am201654b
Rights: © 2012 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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