Lingapppan Niranjanmurthi, Jeong Jung Hyun, Park Jong Myung, Lim Kwon Taek
J Nanosci Nanotechnol. 2014 Aug;14(8):5708-12. doi: 10.1166/jnn.2014.8455.
We report a simple one-pot synthesis of graphene nanosheets wrapped poly(3-methylthiophene) (GNs-f-P3MT) composites. At first, natural graphite was oxidized using the Hummer's method followed by chemical reduction with hydrazine monohydrate to yield GNs. Subsequently, in-situ chemical oxidative polymerization of 3-methylthiophene was carried out to obtain noncovalently bonded GNs-f-P3MT composites. The morphology and microstructure of the composites together with pure graphene oxide and GNs were characterized using XPS, XRD, FT-IR, FESEM, HRTEM and TGA. The microscopic results indicated the homogeneous dispersion of GNs throughout the polymer matrix. Furthermore, thermogravimetric results illustrated that the addition of GNs into the P3MT matrix led to improvement in the thermal stability of the composites.
我们报道了一种简单的一锅法合成石墨烯纳米片包裹聚（3-甲基噻吩）（GNs-f-P3MT）复合材料的方法。首先，采用Hummer法氧化天然石墨，然后用一水合肼进行化学还原以得到石墨烯纳米片（GNs）。随后，进行3-甲基噻吩的原位化学氧化聚合反应，以获得非共价键合的GNs-f-P3MT复合材料。使用X射线光电子能谱（XPS）、X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、场发射扫描电子显微镜（FESEM）、高分辨率透射电子显微镜（HRTEM）和热重分析（TGA）对复合材料以及纯氧化石墨烯和GNs的形态和微观结构进行了表征。微观结果表明GNs在整个聚合物基体中均匀分散。此外，热重分析结果表明，将GNs添加到P3MT基体中可提高复合材料的热稳定性。
