Laser-induced graft co-polymerization on the surface of polymer

Vadim B. Oshurko; A. A. Chistyakov; Yuri A. Bykovsky

doi:10.1117/12.178122

17 June 1994 Laser-induced graft co-polymerization on the surface of polymer

Vadim B. Oshurko, A. A. Chistyakov, Yuri A. Bykovsky

Proceedings Volume 2124, Laser Techniques for State-Selected and State-to-State Chemistry II; (1994) https://doi.org/10.1117/12.178122
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

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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