The adhesion of microorganisms onto materials surface mediated by extracellular polymeric substances (EPS) lead to an important modification of the metal-solution interface. The requirement of modem civilization with the hightened sense of environmental responsibilities and quality of life can be met by using some eco-friendly microbiocides with different spectra of activity. Some n2o2 donor schiff base compounds were synthesized and characterized by IR, NMR and ESR spectroscopy. These compounds were found effective in controling the growth of biofilm of E. соli, Pseudomonas fluorescens and Thiobacillus thiooxidans on copper surface. The optimum concentration of these compounds are in the range of 1-10 ppm. Various electrochemical, microbiological and surface-analytical techniques were used to monitor the biofilm in the presence of microbiocides.

Subject
X-ray diffraction, Chemical compounds, Water, Materials, Corrosion rate, Metal surfaces, Mixtures, Biofilms, Corrosion products, Corrosion inhibitors, Oxygen, Copper, Potentiodynamic polarization
Keywords:
Biofilm, copper, microbiocides, microbiologically influenced corrosion (MIC), Schiff bases
© 1997 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1997
Association for Materials Protection and Performance (AMPP)
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