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Characterization of PVAc/TiO 2 hybrid nanofibers: From fibrous morphologies to molecular structures
Author(s) -
Wu Ning,
Shao Dongfeng,
Wei Qufu,
Cai Yibing,
Gao Weidong
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29535
Subject(s) - nanofiber , materials science , electrospinning , polyvinyl acetate , scanning electron microscope , fourier transform infrared spectroscopy , transmission electron microscopy , chemical engineering , polymer chemistry , polymer , composite material , nanotechnology , engineering
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