Cellulose Nanofiber-Supported Polyaniline Nanocomposite Conductive Film and its Conductive Properties

Abstract:

As a conducting polymer, polyaniline (PANI) have found wide applications including electrode material, sensors and supercapacitors, which is attributed to a combination of the advantages for both organic semiconductors and nanomaterials. This article concentrates on the preparation of bacteria cellulose-polyaniline (BC/PANI) conducting nanocomposite films via in situ polymerization of anailine onto bacteria cellulose (BC) scaffold. A series of nanocomposites were prepared with different anailine concentration, doping acid concentration and molar ratio of monomer and oxidant. The as-prepared conducting nanocomposites were characterized by conductivity measurement, scanning electronic microscope (SEM), fourier transform infrared spectroscopy (FT-IR), thermogravimetric analyser (TGA), etc, to find out the best preparation conditions. The results indicated that PANI coated on the surface of nanofibers of bacterial cellulose, the nanoconductive path formed and the conductivity of the film ranged from 2.0×10^-8 to 0.24 S·cm^-1. In addition, the method of combining organic and inorganic acids can solve the de-doped problem caused by using traditional inorganic small molecule acid, such as HCl.

• Periodical: Materials Science Forum (Volume 789)
• Pages: 188-193
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.789.188
• Online since: April 2014
• Authors: Cao Xiang*, Shi Yan Chen, Chuan Lu, Yan Ge, Hua Ping Wang
• Keywords: Bacterial Cellulose, Conducting Nanocomposite Film, In Situ Polymerization, Polyaniline

References

[1] Wang H. et al. Bacterial Cellulose Nano fiber-Supported Polyaniline Nanocomposites with Flake-Shaped Morphology as Supercapacitor Electrodes[J]. J. Phys. Chem. C 2012, 116, 13013- 13019

DOI: 10.1021/jp301099r

[2] Lee B et al. Polymerization of aniline on bacterial cellulose and characterization of bacterial cellulose/polyaniline nanocomposite films[J]. Current Applied Physics, 12 (2012) 75-80

DOI: 10.1016/j.cap.2011.04.045

[3] Hu W et al. Flexible Electrically Conductive Nanocomposite Membrane Based on Bacterial Cellulose and Polyaniline[J]. J. Phys. Chem. B 2011, 115, 8453 –8457

DOI: 10.1021/jp204422v

[4] Krystynowicz A, Czaja W, Wiktorowska-Jezierska A, et al. Factors affecting the yield and properties of bacterial cellulose[J]. Journal of Industrial Microbiology & Biotechnology, 2002, 29(4): 189-195.

DOI: 10.1038/sj.jim.7000303

[5] Kim J, Cai Z, Lee H S, et al. Preparation and characterization of a Bacterial cellulose/Chitosan composite for potential biomedical application[J]. Journal of Polymer Research, 2011, 18(4): 739-744.

DOI: 10.1007/s10965-010-9470-9

[6] Yamanaka S, Watanabe K, Kitamura N, et al. The structure and mechanical properties of sheets prepared from bacterial cellulose[J]. Journal of Materials Science, 1989, 24(9): 3141-3145.

DOI: 10.1007/bf01139032

[7] Shi et al. In situ nano-assembly of bacterial cellulose–polyaniline composites[J]. RSC Advances, 2012, 2, 1040-1046

[8] Muller D et al. Electrically conducting nanocomposites: preparation and properties of polyaniline (PAni)-coated bacterial cellulose nanofibers (BC)[J]. Cellulose (2012) 19:1645–1654

DOI: 10.1007/s10570-012-9754-9

[9] Lee H et al. Fabrication and evaluation of bacterial cellulose-polyaniline composites by interfacial polymerization[J]. Cellulose (2012) 19:1251–1258

DOI: 10.1007/s10570-012-9705-5