Abstract
Preparation and characterisation of Corn Gluten Meal (CGM)-polyaniline (PANI) blends by direct deposition of PANI onto the CGM surface via in situ oxidative polymerisation of aniline was studied. A series of different CGM-PANI blends were prepared by varying CGM-aniline feed mass ratios 95:5, 90:10, 80:20, 70:30, 60:40 and 50:50. The blend compositions were studied by Elemental analysis. Interfacial interactions between nitrogen containing groups from CGM and PANI were detected by X-ray photoelectron spectroscopy and FTIR spectroscopy. Formation of electrically conductive emeraldine salt form of PANI in these blends was evident from their characteristic dark green colour. The conductivity of the blends was increased with increasing PANI content in the blends in the range between 10−2 S·cm−1 to 2 S·cm−1. Similarly all these blends showed free radical scavenging activity and the effect was more pronounced at higher PANI content. Therefore inclusion of PANI introduced valuable functional properties in CGM which can be applicable for commercial uses.
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