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Abstract

An effort has been made to produce polypyrrole-carboxymethylcelllulose (PPY-CMC) conducting polymer composite film on Indium Tin Oxide (ITO) glass electrode from an aqueous solution containing pyrrole monomer, p-toluenesulfonate electrolyte and carboxymethylcellulose (CMC) insulating polymer. The conductivity of the prepared composite film was found to increase with the increase in CMC concentration in pyrrole solution. The optical microscopic study showed the influence of CMC concentration in the pyrrole solution on the morphological changes of the prepared film. The dynamic mechanical analysis (DMA) on the prepared PPY-CMC film revealed the higher plastic property of the PPY-CMC composite film due to the addition of CMC in the polypyrrole structure. The electromagnetic interference (EMI) shielding effectiveness of PPY-CMC film in the frequency range of 8-12 GHz showed a high shielding effectiveness above 41 db, which supported its probable use in various electromagnetic interference shielding applications.

Highly Conducting Polypyrrole/Cellulose Nanocomposite Films with Enhanced Mechanical Properties

“…Their action as conductivity enhancing additives was determined by the presence of carboxylate anions (Table 1). [6,22,[30][31][32][33] Actually, the limited conductivity attained with NFC as additive determined the conductivity range fixed for this study.…”

Ionically self-assembled carboxymethyl cellulose/surfactant complexes for antistatic paper coatings

“…There have been considerable recent efforts to combine developments within advanced materials to the longstanding problem to enhance and to tailor the electrical conductivity of paper, cellulose, and modified cellulose for various applications, such as using conjugated polymers and carbon nanotubes, and even to construct electronic devices on paper [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The electrical properties of paper have long been studied for many fields of science and technology, e.g., in xerocopying, laser printing, electrostatically assisted rotogravure printing, and more generally in paper handling [18][19][20][21][22][23][24].…”

Integrated Waste Biorefineries: Achieving Sustainable Development Goals, 2nd edition

“…As shown in Figure 7 and Supplementary Table S1, the FT-IR spectra of various films exhibited five main peaks at 3,280, 2,915, 1,425, 1,070, and 836 cm −1 , corresponding to the intermolecular interaction of the alcohol hydroxyl group, CH 2 group asymmetric stretching bands from the methyl group, deformation of O-H and C-H bonds in the plane, C-O bond out-of-plane vibration, and the appearance of the PVA skeleton band, respectively (Mahmud et al, 2006;Abdelrazek et al, 2010;Franca et al, 2022). Several changes were observed with the addition of alkaline lignin.…”