J. Lauterbach, M. Schick, R. W. Boyle, W. J. Mitchell, B. Meng and W. H. Weinberg, "The adsorption of CO on Ir(1 11) investigated with FT-IRAS ", Surface Science 350; 3244,1996.

M. Sushchikh, J. Lauterbach, and W.H. Weinberg, "Chemisorption of CO on the Ir(l 11) surface: adsorption and desorption kinetics measured with in situ vibrational spectroscopy", Journal of Vacuum Science and Technology , 15(3); 1630-1635, 1997.

G. Haas, T.D. Pletcher, G. Bonilla, T.A. Jachimowski, H.H. Rotermund, and J. Lauterbach, "Ellipsomicroscopy for Surface Imaging - A Novel Tool to Investigate Surface Dynamics", Journal of Vacuum Science and Technology A, 16(3) 1117-1121, 1998.

K. Green, T.A. Jachimowski, and J. Lauterbach, "The adsorption and photopolymerization of methyl methacrylate on Pt(110)", Surface Science, in press (1998).

Our research efforts in the coating field are towards important fundamental and applied questions regarding the interfacial chemistry of the formation of thin polymeric coatings on metal and semiconductor surfaces. We are primarily interested in the adsorption and UV photopolymerization processes of the monomers styrene, acrolein, acrylic acid and methyl methacrylate on iron, copper, platinum, silicon, and gallium arsenide surfaces. These technologically very important processes are examined in situ in an ultra high vacuum system with sufficient spatial and temporal resolution to understand the ir dynamics on both microscopic and mezoscopic length-scales. The photopolymerizations are carried out both in the gas-phase with subsequent deposition onto the surface and on the surface from adsorbed monomers. Reaction kinetics and mechanisms, coating uniformity and thickness, as well as surface binding energies, are measured using temperature programmed desorption (TPD), time-resolved Fourier transform infrared absorption spectroscopy (TR-IRAS), surface second harmonic generation (SSHG), and ellipsomicroscopy for surface imaging (EMSI). Reaction rates are measured by monitoring the disappearance or appearance of vibrational modes, of monomer and polymer, respectively, using time-resolved FT-IRAS. With this research, we gain an improved fundamental understanding of the formation of polymer coatings on surfaces, which so far has not been fully addressed experimentally by either the polymer community or the surface science community.

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