Dai, ZhaoheWeng, ChuanxinLiu, LuqiHou, YuanZhao, XuanliangKuang, JunShi, JidongWei, YueguangLou, JunZhang, Zhong2017-01-032017-01-032016Dai, Zhaohe, Weng, Chuanxin, Liu, Luqi, et al.. "Multifunctional Polymer-Based Graphene Foams with Buckled Structure and Negative Poisson's Ratio." <i>Scientific Reports,</i> 6, (2016) Springer Nature: http://dx.doi.org/10.1038/srep32989.https://hdl.handle.net/1911/93734In this study, we report the polymer-based graphene foams through combination of bottom-up assembly and simple triaxially buckled structure design. The resulting polymer-based graphene foams not only effectively transfer the functional properties of graphene, but also exhibit novel negative Poisson’s ratio (NPR) behaviors due to the presence of buckled structure. Our results show that after the introduction of buckled structure, improvement in stretchability, toughness, flexibility, energy absorbing ability, hydrophobicity, conductivity, piezoresistive sensitivity and crack resistance could be achieved simultaneously. The combination of mechanical properties, multifunctional performance and unusual deformation behavior would lead to the use of our polymer-based graphene foams for a variety of novel applications in future such as stretchable capacitors or conductors, sensors and oil/water separators and so on.engThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.Journal articlehttp://dx.doi.org/10.1038/srep32989