Functionalization of graphene nanosheets and its dispersion in PMMA/PEO blend: Thermal,electrical, morphological and rheological analyses |
| |
| Authors: | Elham Aram Morteza Ehsani Hossein Ali Khonakdar Seyed Hassan Jafari Nastaran Riahi Nouri |
| |
| Institution: | 1.Iran Polymer and Petrochemical Institute,Tehran,Iran;2.Leibniz Institute of Polymer Research,Dresden,Germany;3.School of Chemical Engineering,University of Tehran,Tehran,Iran;4.Niroo Research Institute,Ceramic & Polymer Group,Tehran,Iran |
| |
| Abstract: | Graphene nanoplatelet (GnP) was chemically functionalized by amine groups for improvement of compatibility in poly(methyl methacrylate) (PMMA)/poly(ethylene oxide) (PEO) blend. PMMA/PEO (90/10) nanocomposites with non-functionalized GnP and functionalized GnP (FGnP) were prepared by solution casting method. Successful grafting of amine groups on the GnP surface was confirmed by Fourier transform infrared (FT-IR) and X-ray diffraction (XRD) analysis. The Transmission electron microscopy (TEM) images showed that the dispersion state of FGnP was better than that of GnP in PMMA/PEO nanocomposites. The effects of FGnP and GnP on rheological, thermal and electrical properties of PMMA/PEO nanocomposites were investigated by various methods. The results indicated that the FGnP-based nanocomposites had higher storage modulus, glass transition temperature and thermal stability as compared to the GnP-based nanocomposites. The electrical conductivity of the nanocomposites with FGnP was better than that of GnP-based nanocomposites. The higher conductivity was attributed to homogeneous and well dispersion state of FGnP in PMMA/PEO nanocomposites. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
