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17 June 1994 Laser-induced graft co-polymerization on the surface of polymer
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Abstract
The main problem in laser stimulation of selective (nonequilibrium) reactions in solids is to overcome the fast internal conversion which led to electronic states deactivation and heating with thermal dissociation. But sometimes it's possible to find a condition when the heating of surface is negligible but the intensity is enough to initiate multiphoton excitation of molecules. In present work the effect of direct (i.e. without sensitizers) graft co- polymerization under pulsed UV-laser radiation on the surface of polymer in gas atmosphere was found. Absorption, luminescent spectroscopy and time-of- flight mass-spectrometry were used as experimental methods as well as chemical analysis. The effect of co-polymerization shows nonlinear dependence on power density. It has been found that co-polymerization due to nonlinear nonthermal macromolecules dissociation on the surface and the excitation of molecules in gas phase play no role. Ion-exchange, properties of new material have been studied.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vadim B. Oshurko, A. A. Chistyakov, and Yuri A. Bykovsky "Laser-induced graft co-polymerization on the surface of polymer", Proc. SPIE 2124, Laser Techniques for State-Selected and State-to-State Chemistry II, (17 June 1994); https://doi.org/10.1117/12.178122
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