Optimization of Electrical Conductivity of SA-graphene Nanocomposites Using Response Surface Methodology  

作　　者：HakanŞAHAL Gülben TORĞUT Erdal CANPOLAT 

机构地区：[1]Vocational School of Tunceli,Department of Food Processing,Munzur University,Tunceli 62000,Turkey [2]Vocational School of Tunceli,Department of Chemistry and Chemical Processes,Munzur University,Tunceli 62000,Turkey [3]Department of Elementary Science Education,Faculty of Education,Firat University,Elazig 23119,Turkey

出　　处：《Chemical Research in Chinese Universities》2022年第2期596-602,共7页高等学校化学研究（英文版）

摘　　要：Synthesis and characterization of 4-{(E)-[(5-bromo-2-hydroxyphenyl)methylidene]amino}-N-carbamimidoylbenzene-1-sulfonamide(SA) and its composites with graphene(SA-GF) were performed. Compound SA and SA-GF were characterized by FTIR and 1H NMR. The GF dispersion in the composites was analyzed by means of scanning electron microscopy(SEM) for morphology. Thermal properties of SA and nanocomposites were investigated using differential thermal analysis(DTA) and thermogravimetric analysis(TGA). The optimum electrical conductivity of the new sulfonamide-based Schiff base was determined to be 1.78×10–5 S/cm at a frequency of 9923 Hz, an applied voltage of –19 V, a mass fraction of 9.38% for graphene loading using a central composite design in the response surface methodology. The significance of the selected parameters(frequency, voltage and GF amount) in the model was determined by the analysis of variance(ANOVA). The results showed that frequency and graphene loading represent important model terms and have considerable effects on the conductivity of SA.

关 键 词：Schiff base SULFONAMIDE GRAPHENE CONDUCTIVITY NANOCOMPOSITE 

分 类 号：TB33[一般工业技术—材料科学与工程]