Abstract
Certain polypeptides isolated from biomineralized tissues, such as oyster shells, are inhibitors of calcium carbonate and calcium phosphate crystallization. Synthetic analogs have been developed in this laboratory which are more effective inhibitors of mineral crystallization. Polyaspartate, a polyanionic peptide consisting of approximately twenty aspartic acid residues, is now shown here to inhibit the corrosion of stainless steel in sea water. Polyaspartate is also shown to inhibit the precipitation of calcium carbonate on stainless steel and to reduce corrosion associated with mineral deposition. Certain derivatives of polyaspartate with greater mineralization inhibition activity and are being tested for corrosion inhibition properties.
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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