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The Use of Aqueous Enzymatic Polymerization of Amphyphilic Alkyl Tyrosine Derivatives as Environmentally Benign Coatings in the Microelectronics Industry

Published online by Cambridge University Press:  17 March 2011

Anastasios P. Angelopoulos ,
Kenneth A. Marx  and
Kyoung S. Oh
Anastasios P. Angelopoulos
Affiliation:
Center for Advanced Materials, University of Massachusetts Lowell
Kenneth A. Marx
Affiliation:
Center for Intelligent Biomaterials, University of Massachusetts Lowell
Kyoung S. Oh
Affiliation:
Department of Chemistry, University of Massachusetts LowellUniversity Avenue, Lowell, MA 01854
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Abstract

The surface coating properties of enzymatically polymerized decyl esters of d-tyrosine from aqueous solutions onto gold surfaces have been investigated utilizing the complementary techniques of Potentiometeric Titration, UV-VIS Spectroscopy, and X-ray Photoelectron Spectroscopy (XPS). The aqueous-based coatings are of interest as environmentally friendly and cost-effective replacements for epoxy-based coatings currently employed in the microelectronics industry for both chemical protection and electrical insulation of gold-covered metallic conductors. Experimental results with respect to polymerization pH, immersion pH, and immersion time are presented and compared to the ionization behavior of the monomers in solution. Optimum processing conditions have been established, which yield uniform aqueous-based polymeric coatings on gold conductor surfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 710: Symposia DD – Polymer Interfaces and Thin Films , 2001 , DD12.10.1
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Sarma, R., Alva, K.S., Marx, K.A., Tripathy, S.K., Akara, J.A., Kaplan, D.L., A Enzymatic Polymerization of Amphiphilic Alkyl Tyrosine Derivative from Emulsions@, Materials Science and Engineering C4, p. 189–192 (1996).Google Scholar
2. Marx, K.A., Alva, K.S., and Sarma, R., A Self-Assembled Micron-Scale Fibre Structures are Formed by Amphiphilic Decyl Ester Derivatives of the D- and L- Tyrosine Amino Acids Prior to and Following Enzymatic Ring Polymerization@, Materials Science and Engineering C11, p. 155–163 (2000).Google Scholar
3. Marx, K.A., Zhou, T., and Sarma, R., A Quartz Crystal Microbalance Measurement of Self-Assembled Micellar Tubules of the Amphiphilic Decyl Ester of D-Tyrosine and Their Enzymatic Polymerization@, Biotechnology Progress 15, p. 522–528 (1999).Google Scholar
4. Seraphim, D.P., Lasky, R.C., and Li, C.Y., Eds., Principles of Electronic Packaging, McGraw Hill, New York, 1988.Google Scholar
5. Angelopoulos, A. P., Matienzo, L.J., and Jones, G.W., A Thermally Induced Intramolecular Surface Reactions on a Photoimageable Dielectric@, Langmuir 16, p. 1078–1082 (2000).Google Scholar
6. Alva, K.S., Marx, K.A., Kumar, J., and Tripathy, S.K., A Mechanistic Study of Enzyme Catalyzed Polymerization of 8-Hydroxyquinoline-5-Sulfonate Using NMR Spectroscopy@, Macromolecular Rapid Communications 18, p 133–137 (1997).Google Scholar
7. Angelopoulos, A.P., Marx, K., and Oh, K.S., manuscript in preparation.Google Scholar