文献类型：期刊文献

英文题名：Synthesis of acid-soluble graphene and its use in producing a reduced graphene oxide-poly(benzobisoxazole) composite

作者：Zhuang, Qixin[1];Liu, Xilong[1];Wang, Qing[2];Liu, Xiaoyun[1];Zhou, Jingning[1];Han, Zhewen[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

年份：2012

卷号：22

期号：24

起止页码：12381

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY

收录：;EI(收录号：20122515127767);WOS:【SCI-EXPANDED(收录号:WOS:000304561900070)】；

基金：The authors express their gratitude to the National Natural Science Foundation of China (NSFC) for their financial support, contract grant numbers are 50973028 and 50703010. This project is also supported by the Innovation Program of Shanghai Municipal Education Commission (12ZZ049) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Blending - Thermodynamic stability - Composite films

摘要：A new chemically modified graphene was prepared using carboxylated graphene oxide (GO) and fluorinated poly(hydroxyamide) (6FPHA), the latter is the precursor of fluorinated poly (benzobisoxazole) (6FPBO). The results showed that, unlike common GO, which can only be dispersed in water under neutral or basic conditions, the RGO-6FPBO (reduced graphene oxide-6FPBO) could be stably dispersed in Lewis acids. The RGO-6FPBO-poly(benzobisoxazole) (PBO) composite was achieved by simple solution blending of RGO-6FPBO and PBO in methanesulfonic acid. The obtained RGO-6FPBO-PBO composite films exhibited a dramatic increase in electrical conductivity, by 8 orders of magnitude at the RGO-6FPBO content of 4 wt%, without significantly sacrificing optical transparency. When the content of RGO-6FPBO was higher than 4 wt%, the dielectric constant of the composite film also increased remarkably. The mechanical properties and thermal stability of the composite were also improved by the incorporation of RGO-6FPBO.