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A Novel Photochemical Route For Modifying Surfaces: Prospects And Applications.

Published online by Cambridge University Press:  15 February 2011

Mark A. Harmer
Mark A. Harmer*
Affiliation:
Du Pont, Central Research and Development, Experimental Station, P.O. Box 80328, Wilmington, DE 19880–0328
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Abstract

Potential applications of a very general route to photochemically modifying a range of surfaces will be described. Surfaces which have been modified vary considerably and include polyimide, polyethylene, fluoropolymers, polyester, glass, tin oxide and aluminum. Photoactivated azides, for example 3-azidopyridine, have been found to be very effective at modifying a range of surfaces. Using this method organic type functional groups, in this case pyridine type groups, can be photografted on to the surface. As a result of photomodification the surface properties change. In the case of polyethylene for example the surface becomes more hyrophilic and shows improved adhesion to metals. These modified surfaces also display acid-base character. In the protonated form anions can be exchanged into the film. This method has been used to modify a metal oxide electrode surface to develop chemically modified electrodes. The process may also be used in lithography.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 227: Symposium J – Materials Science of High Temperature Polymers for Microelectronics , 1991 , 341
Copyright
Copyright © Materials Research Society 1991

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References

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