Characterization of PVAc/TiO2 hybrid nanofibers: From fibrous morphologies to molecular structures

✍ Scribed by Ning Wu; Dongfeng Shao; Qufu Wei; Yibing Cai; Weidong Gao

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 358 KB
• Volume: 112
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.29535

✦ Synopsis

Abstract

Polyvinyl acetate (PVAc)/titanium dioxide (TiO~2~) hybrid nanofibers were fabricated by combining sol–gel process with electrospinning technology, which consisted of PVAc as organic segment and TiO~2~ as inorganic part. The surface structures of the PVAc/TiO~2~ hybrid nanofibrous mats were examined using scanning electron microscopy (SEM). The surface morphology and bulk structures of single nanofiber were investigated by atomic force microscopy (AFM) and transmission electron microscopy (TEM). Fourier transform infrared spectroscopy (FTIR) was employed to analyze the chemical structures of the PVAc/TiO~2~ hybrid nanofibers. SEM scanning revealed that the fibrous structure was formed. AFM observations presented a significant difference in the morphology of the nanofibers before and after hybridization. It was observed from TEM images that some black streaks with various lengths distributed in a nanofiber. The FTIR analysis indicated the newly formed associated hydrogen bond because of the hybrid effect between PVAc and TiO~2~ sol. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009