Phenolic acid grafted chitosan has widespread drug delivery applications, as bio adsorbent, packing material, etc., due to its excellent antioxidant and antimicrobial properties. However, for the first time, the anticorrosive efficiency of ferulic acid modified chitosan has been investigated. The prepared chitosan derivative is characterized using spectral methods, thermal analytical methods, surface charge, and particle size analysis. The evaluation of corrosion inhibition potential showed a highest value of 95.96 % at 303 K. Thermodynamic activation and adsorption parameters endorse a mixed adsorption process involving an initial electrostatic interaction followed by chemisorption. Electrochemical studies gave results which agreed well with the gravimetric studies. Surface morphological studies were performed using contact angle measurements, FESEM, EDAX, AFM, optical profilometric and UV spectral techniques. Computational studies involving quantum chemical calculations, Monte Carlo and molecular dynamic simulation studies, and radial distribution function analysis are further done to validate the experimental results.

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The unique superhydrophobic property of lotus leaf, encouraged researchers to fabricate artificial superhydrophobic surfaces (SHs) adopting different methods. The purpose of this work is to attempt a modest, robust and environmentally safeprocedure to build a superhydrophobic surface on aluminium substrate by wet-chemical grafting. The substrate after few pretreatments like mechanical, chemical etching, anodizing at different current density and at different time duration was immersed in a solution containing sodium hydroxide in deionized water, lauric acid in ethanol. The effect of duration of anodization and sealing on the production of superhydrophobic surface was highlighed. Using Scanning Electron Micrsocopy (SEM) the surface morphology of the bare aluminium substrate and superhydrophobic surface. Using static water contact angle (WCA) measurements the non-wetting property of the as such fabricated superhydrophboic surface was studied and compared with the bare aluminium substrate. The corrosion resistance of the fabricated superhydrophobic surface in 3.5 % NaCl medium was examined by potentiodynamic polarization method and compared with the bare aluminium substrate. The fabricated SHs showsvery good corrosion resistance in comparison with the bare aluminiuim substrate in 3.5 % NaCl medium..