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The Application of Amine - Quinone Polymers in High Density Recording Media for Improved Corrosion Protection

Published online by Cambridge University Press:  10 February 2011

Rahul Sharma ,
G. W. Warren ,
D. Nikles ,
Y. Hu  and
S. Street
Rahul Sharma
Affiliation:
The University of Alabama, Department of Metallurgical and Materials Engineering
G. W. Warren
Affiliation:
The University of Alabama, Department of Metallurgical and Materials Engineering
D. Nikles
Affiliation:
The University of Alabama, Department of Chemistry Tuscaloosa, AL 35487
Y. Hu
Affiliation:
The University of Alabama, Department of Chemistry Tuscaloosa, AL 35487
S. Street
Affiliation:
The University of Alabama, Department of Chemistry Tuscaloosa, AL 35487
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Abstract

High density, metal particle recording media consists of micron-sized iron particles in a polyurethane based polymer binder. In order to improve the corrosion resistance of the particles, two new amine-quinone (AQ) polymers, AQPU15 and AQPU100, have been investigated. Electrochemical impedance spectroscopy (EIS) was used to evaluate the corrosion behavior of iron substrates coated with two different thicknesses of each polymer. Results showed that the AQ polymers provide better protection compared with commercial polyurethane. The nature of the interaction at the polymer/metal interface has been investigated by FTIR-RA and XPS, which indicate that bonding probably occurs through the n system of the AQ functional group and the nitrogen of the soft segment, and through the quinone carbonyl functional group.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 517: Symposium F – Wide Bandgap Semiconductors for High Power, High Frequency , January 1998 , 439
Copyright
Copyright © Materials Research Society 1998

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