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Abstract. In this paper, we are reporting a novel strategy for the preparation of conductive polyaniline-clay nanocomposite in Polyvinylchloride (PVC) matrix by admicellar emulsion polymerization using a low cost renewable resource based surfactant cum dopant. The highly oriented percolated network of polyaniline-clay nanocomposite in PVC matrix was revealed from the studies made by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Fourier transform infrared spectroscopy (FTIR) results suggested that porous template was formed by the noncovalent interactions among the hydroxyl groups present in the nanoclay edges and the chloride ions present in PVC matrix. Here, the bio-based surfactant, 4-hydroxy-2-pentadecyl benzene-1-sulphonic acid (PDPSA) performed multiple roles of dopant, emulsifier and soft template during the polymerization of anilinium + PDPSA -(An + PDPSA -) in PVC-clay matrix. The prepared composite exhibited electrical conductivity (! dc ) of 4.8·10 -2 S/cm and electromagnetic interference shielding efficiency (EMI SE) of 55.2 dB suggesting it as a prospectable candidate for the encapsulation of electronic devices in high technological applications.

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This paper describes the effect of unsaturation, solvent, concentration and temperature on the specific modes of packing and the formation of supramolecular architectures in cholesterol tagged cardanol, 3‐pentadecyl phenol. Influences were investigated using various microscopic techniques, UV‐Vis spectroscopy, emission spectroscopy, Circular Dichroism (CD) spectroscopy, X‐Ray Diffraction (XRD) and rheometry. Results revealed that the driving force for the self‐assembly is the combined effect of the shape of molecules, specific intermolecular interactions such as chiral‐chiral, π‐π, electrostatic layer by layer stacking and molecule–solvent interactions among the molecular layers. Based on the results obtained, a plausible mechanism for the formation of self‐assembled architectures from one‐dimensional nanowire to two‐dimensional micro sheets and three‐dimensional spherulites/helical fibrillar networks is presented.

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