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Journal of Spectroscopy
Volume 2013 (2013), Article ID 616159, 8 pages
http://dx.doi.org/10.1155/2013/616159
Research Article

Synthesis and Characterization of Modified Cellulose Acetate Propionate Nanocomposites via Sol-Gel Process

1Faculty of Commodity Science, Poznan' University of Economics, Al. Niepodleglosci 10, 61-875 Poznan', Poland
2Faculty of Technical Physics, Poznan' University of Technology, Ul. Nieszawska 13A, 60-965 Poznan', Poland

Received 27 June 2012; Accepted 5 November 2012

Academic Editor: Carlos Andres Palacio

Copyright © 2013 Patrycja Wojciechowska et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study novel organic-inorganic hybrid nanocomposites were synthesized from modified cellulose acetate propionate (MCAP) via sol-gel reaction at ambient temperature. The inorganic phase was introduced in situ by hydrolysis-condensation of tetraethoxysilane (TEOS) in different concentrations, under acid catalysis, in the presence of organic polymer dissolved in acetone. The chemical modification of CAP was monitored by infrared spectroscopy (IR). The nanocomposites structure was characterized by IR analysis and solid state 29Si NMR studies. The spectral data revealed that organic and inorganic phases are linked through covalent bound. Surface morphology of the samples and the degree of dispersion of inorganic phase in the polymer matrix were investigated using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The actual incorporation of the inorganic component into the hybrid nanocomposites was deducted from the residual weight according to thermogravimetric analysis (TGA).