%0 Journal Article %T Structural and mechanical properties of cellulose acetate/graphene hybrid nanofibers: Spectroscopic investigations %A B. S. Kim %A I. S. Kim %A K. Zeeshan %A K. Fujimori %J eXPRESS Polymer Letters %D 2013 %I Budapest University of Technology %R 10.3144/expresspolymlett.2013.52 %X Cellulose acetate/graphene (CA/graphene) and cellulose acetate/graphene-COOH (CA/graphene-COOH) hybrid nanofibers were fabricated via electrospinning technique, and their morphologies, crystallinity and mechanical properties were investigated. The added amounts of graphene and graphene-COOH were varied from 0.5 to 5.0 wt%. The crystal structures and morphologies of the resultant hybrid nanofibers were investigated by wide angle X-ray diffraction (WAXD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. Graphene-COOH incorporated CA nanofiber mats showed higher Young¡¯s modulus of about 910 MPa among than those of CA/graphene nanofibers, which is due to molecular interactions between ¨CCOOH groups in acid-treated graphene and C=O groups in CA via hydrogen bonding. This specific interaction was demonstrated by spectroscopic studies (Raman and Fourier transform infrared (FT-IR) spectroscopies). %K Mechanical properties %K Nanofiber %K Graphene %K Molecular interactions %K Polymer composites %U http://www.expresspolymlett.com/letolt.php?file=EPL-0004278&mi=cd