01716nas a2200205   4500008004100000022001400041245013700055210006900192260009000261300001000351490000700361520091000368100001701278700001401295700002001309700001701329700002101346700001501367856012801382       2005                        eng d  a0002-782000aFormation of BaCrO4 nano crystallites within thermally evaporated sodium bis-2-ethylhexyl-sulfosuccinate and stearic acid thin films0 aFormation of BaCrO4 nano crystallites within thermally evaporate  a735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43086-6136 USAbAMER CERAMIC SOCcJAN  a24-270 v883 a<p>This paper describes the growth of barium chromate (BaCrO4) nanocrystallites within thermally evaporated thin films of stearic acid (StA) and sodium bis-2-ethylhexyl-sulfosuccinate by a process of Ba2+ ion entrapment followed by in situ reaction CrO42- ions. Dense spherical assemblies of BaCrO4 nanocrystallites of very uniform size (similar to50 nm) were obtained within the two different host matrices. The spherical assemblies were composed of smaller (ca. 5-10 nm size) BaCrO4 crystals indicating that efficient size control over crystal size may be exercised by the matrix. Contact angle measurements of the BaCrO4-StA and BaCrO4-sodium bis-2-ethylhexyl-sulfosuccinate films indicated that they were hydrophobic, thus pointing to the possible role of hydrophobic interaction between the StA and sodium bis-2-ethylhexyl-sulfosuccinate monolayer-covered BaCrO4 crystals in the assembly process.</p>1 aRautaray, D.1 aSinha, K.1 aSainkar, S., R.1 aPasricha, R.1 aPavaskar, N., R.1 aSastry, M.  uhttps://library.ncl.res.in/content/formation-bacro4-nano-crystallites-within-thermally-evaporated-sodium-bis-2-ethylhexyl-002413nas a2200253   4500008004100000022001400041245008700055210006900142260006900211300001400280490000800294520152300302653002401825653001101849653003401860653002301894653003101917100002401948700002001972700001801992700002002010700001802030856011102048       2006                        eng d  a0257-897200aFormation of poly(o-anisidine) coatings on copper from aqueous salicylate solution0 aFormation of polyoanisidine coatings on copper from aqueous sali  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcMAY  a5557-55650 v2003 a<p>Poly(o-anisidine) coatings have been electrosynthesized by using cyclic voltammetry on copper from an aqueous salicylate medium. Cyclic voltammetry, UV-visible absorption spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy were used to characterize these coatings, which indicates that the aqueous salicylate solution is a suitable medium for the electrochemical polymerization of o-anisidine on copper substrate. Cyclic voltammetry accompanied by the X-ray photoelectron spectroscopy was used to characterize the surface modifications induced by polarizing the copper substrate in the aqueous salicylate solution (without monomer). It was shown that the polarization of the copper in the aqueous salicylate medium results into the passivation of its surface via the formation of Cu(2)O and/or copper salicylate complex. It was found that the electrochemical polymerization of o-anisidine takes place after the passivation of the copper substrate via fort-nation of Cu(2)O and/or copper salicylate complex and results into the formation of shiny, uniform and strongly adherent poly(o-anisidine). The optical absorption spectroscopy reveals the formation of emraldine salt form of poly(o-anisidine). This study offers an electrochemical polymerization recipe to synthesize strongly adherent poly(o-anisidine) coating on copper from aqueous media for possible use in corrosion protection application. (c) 2005 Elsevier B.V. All rights reserved.</p>10aconducting polymers10aCopper10acorrosion protective coatings10acyclic voltammetry10apoly(o-anisidine) coatings1 aChaudhari, Sudeshna1 aMandale, A., B.1 aPatil, K., R.1 aSainkar, S., R.1 aPatil, P., P.  uhttps://library.ncl.res.in/content/formation-polyo-anisidine-coatings-copper-aqueous-salicylate-solution-0