title: The effect of synthesis media on the properties of substituted polyaniline/chitosan composites.
abstract: Substituted polyaniline/chitosan (sPANI/Ch) composites were chemically synthesized in H(2)SO(4) and CH(3)COOH synthesis media. Structural and physical properties of the composites were characterized by using FTIR, SEM, TGA, UV-vis, XRD techniques, and conductivity measurements. The effect of synthesis media on morphology, thermal stability, conductivity, and crystalline properties was investigated. Chemical interactions between substituted polyanilines and chitosan were explained using FTIR spectra results. The different morphological surfaces were observed in SEM images of the composites. The size of the substituted polyaniline/chitosan (sPANI/Ch) composites was in nanoscale, and the composites synthesized in acetic acid media showed smaller structures than those of H(2)SO(4) media and pure chitosan. It was interpreted from XRD results that the composites have amorphous structure and the PNEANI/Ch-CH(3)COOH composite has the highest crystallinity.
authors: Department of Chemistry, Faculty of Arts and Science, Suleyman Demirel University, 32260 Isparta, Turkey. chemaysegul@gmail.com
authors: Ayse Gul
authors: AG
authors: Yavuz
authors: Aysegul
authors: A
authors: Uygun
authors: Hatice
authors: H
authors: Kaplan Can
mesh_terms: D000085:Acetates / Q000737:chemistry; D000814:Aniline Compounds / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic / Q000379:methods*; D048271:Chitosan / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013464:Sulfuric Acids / Q000737:chemistry; D013696:Temperature; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D000085:Acetates; D000814:Aniline Compounds; D013464:Sulfuric Acids; C416807:polyaniline; D048271:Chitosan; C033158:sulfuric acid