Synthesis and Characterization of Electrical and Thermal Conductive Vinyltriethoxysilane Functionalized Graphene Oxide/Poly (Methyl Methacrylate) Nanocomposite Films

Srosh Fazil; Khurram Liaqat; Wajid Rehman; Magda H Abdellatif

doi:10.3390/membranes13060609

Synthesis and Characterization of Electrical and Thermal Conductive Vinyltriethoxysilane Functionalized Graphene Oxide/Poly (Methyl Methacrylate) Nanocomposite Films

Membranes (Basel). 2023 Jun 20;13(6):609. doi: 10.3390/membranes13060609.

Authors

Srosh Fazil¹, Khurram Liaqat¹, Wajid Rehman², Magda H Abdellatif³

Affiliations

¹ Department of Chemistry, University of Poonch Rawalakot, Rawalakot 12350, Azad Kashmir, Pakistan.
² Department of Chemistry, Hazara University Mansehra, Mansehra 21120, Khyber Pakhtunkhwa, Pakistan.
³ Department of Chemistry, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.

Abstract

The present study is an attempt to improve thermal, mechanical and electrical properties of poly (methyl methacrylate) (PMMA). For this purpose, vinyltriethoxysilane (VTES) was grafted covalently on the surface of graphene oxide (GO). This VTES functionalized graphene oxide (VGO) was dispersed in the PMMA matrix using the solution casting method. The morphology of the resultant PMMA/VGO nanocomposites was analyzed by SEM indicating well-dispersed VGO in the PMMA matrix. Thermal stability, tensile strength and thermal conductivity increased by 90%, 91% and 75%, respectively, whereas volume electrical resistivity and surface electrical resistivity reduced to 9.45 × 10⁵ Ω/cm and 5.45 × 10⁷ Ω/cm², respectively.

Keywords: nanocomposite films; poly (methyl methacrylate); vinyltriethoxysilane functionalized graphene oxide.

Grants and funding

One of us, M.H.A., expresses thanks to the Taif University researchers supporting Project TURSP2020/91, Taif, Saudi Arabia.