Now showing items 4-9 of 9

  • Improving the corrosion performance of hybrid sol-gel matrix by modification with phosphonic acid 

    Dalmoro, Viviane; Dos Santos, J.H.Z.; baibich, Lone M; Butler, Ian S; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2015-03-01)
    Article
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    Sol-gel films were prepared using different ratios of two silica precursors, vinyltrimethoxysilane (VTMS) and tetraethylorthosilicate (TEOS), targeting the anticorrosion treatment of aluminum alloy 2024-T3. The electrochemical ...
  • Microstructures of poly(N-methylpyrrole) and their interaction with morphine 

    Cruz Teixeira Dias, Bruno José da; Alemán Llansó, Carlos; Estrany Coda, Francesc; Azambuja, Denise S.; Armelín Diggroc, Elaine Aparecida (2011-06-30)
    Article
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    Microstructures of poly(N-methylpyrrole) have been generated by direct electrochemical oxidation of N-methylpyrrole with poly(styrenesulfonic acid) in aqueous solution, using a micelle formation mechanism with gas bubble ...
  • Nanometric ultracapacitors fabricated using multilayer of conducting polymers on self-assembled octanethiol monolayers 

    Aradilla Zapata, David; Pérez Madrigal, Maria del Mar; Estrany Coda, Francesc; Azambuja, Denise S.; Iribarren Laco, José Ignacio; Alemán Llansó, Carlos (2013-06)
    Article
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    Symmetric ultracapacitors have been fabricated considering nanometric 3-layered films made of alternated layers of poly(3,4-ethylenedioxythiophene) (external and internal layers) and polypyrrole (intermediate layer) deposited ...
  • Phosphonic acid/silica-based films: A potential treatment for corrosion protection 

    Dalmoro, V.; dos Santos, João Henrique Zimnoch; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2012-07)
    Article
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    Films of tetraethyl orthosilicate (TEOS) and 1,2-diaminoethanetetrakis methylenephosphonic acid (EDTPO) were evaluated as a anticorrosive treatment against corrosion for AA2024-T3 in a 0.05 mol L−1 NaCl solution. The ...
  • Sol-gel hybrid films based on organosilane and montmorillonite for corrosion inhibition of AA2024 

    Dalmoro, V.; Dos Santos, J.H.Z.; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos; Azambuja, Denise S. (2014-07-15)
    Article
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    The present work reports the production of films on AA2024-T3 composed of vinyltrimethoxysilane (VTMS)/tetraethylorthosilicate (TEOS) with incorporation of montmorillonite (sodium montmorillonite and montmorillonite modified ...
  • The influence of organophosphonic acid and conducting polymer on the adhesion and protection of epoxy coating on aluminium alloy 

    Dalmoro, Viviane; Alemán Llansó, Carlos; Ferreira, Carlos Arthur; Dos Santos, J.H.Z.; Azambuja, Denise S.; Armelín Diggroc, Elaine Aparecida (2015-11-01)
    Article
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    In the present study we compared the beneficial effect on the incorporation of modified silane nanocoating and conducting polymer additive to the adhesion and protection of aluminium surface with epoxy coating. Results ...