News Column

Reports Summarize Polymer Research Findings from Shanghai University

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- New research on Polymer Research is the subject of a report. According to news reporting originating in Shanghai, People's Republic of China, by VerticalNews journalists, research stated, "Multiwalled carbon nanotubes (MWCNTs) have been widely used as reinforcement fillers in past decades. However, the reinforcement effect has been greatly hindered by the limited available interface area (AIA) with polymer matrices for polymer composites."

The news reporters obtained a quote from the research from Shanghai University, "Successively, the method of oxidative unzipping MWCNTs into graphene nanoribbons (GNRs) was demonstrated to be the effective way for addressing the inherent drawback of MWCNTs. However, the GNRs are easy to agglomerate in polymer matrix even at relatively low loading amount. In this paper, we found that the functionalization of GNRs with Kevlar can significantly improve the dispersion state of GNRs in polymer matrix. Consequently, Kevlae -functionalized graphene nanoribbons (KGNRs) were successfully prepared through non-covalent functionalization of pi-pi stacking interaction between the aromatic area of Kevlar and the graphitic surface of GNRs. As-prepared KGNRs were characterized by FT-IR, TGA, XRD and TEM measurements. Poly(vinyl chloride) (PVC) and poly(methyl methacrylate) (PMMA) were selected as model polymers to investigate the reinforcement effect of KGNRs. The KGNRs could be well dispersed in PVC and PMMA matrices at relatively high loading level. Meantime, the ultimate tensile strengths and Young's modulus of KGNRs/PVC and KGNRs/PMMA composite films were significantly improved."

According to the news reporters, the research concluded: "Based on the observations above, KGNRs hold great promise in many potential applications in the future."

For more information on this research see: Kevlar -functionalized graphene nanoribbon for polymer reinforcement. Polymer, 2014;55(10):2578-2587. Polymer can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Polymer -

Our news correspondents report that additional information may be obtained by contacting M. Lian, Shanghai Univ Elect Power, Coll Environm & Chem Engn, Shanghai 200090, People's Republic of China. Additional authors for this research include J.C. Fan, Z.X. Shi, H. Li and J. Yin.

Keywords for this news article include: Asia, Shanghai, Polymer Research, People's Republic of China

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Source: Journal of Technology

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