PULSED LASER HEATING AND SPECTROSCOPIC STUDIES OF ORGANIC AMORPHOUS/GLASSY SYSTEMS II. EXPERIMENTS WITH BENZOPHENONE
Loading...
Date
1990
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Low temperature conditions preserve the non-equilibrium states of organic amorphoua/glassy materials and allow them to be investigated by optical spectroscopy. Structural changes in such materials may be induced by pulsed laser heating. We continue our discussion of this subject by way of experiments with amorphous/glassy benzophenone and naphthalene/benzophenone. In particular we describe how laser induced phosphorescence spectroscopy is a sensitive probe of amorphous/glassy structure and solid phase transformations. To that end, we develop a model which facilitates understanding of our phosphorescence decay measurements. Our model points toward structural features intrinsic to amorphous/glassy benzophenone and the changes resulting from pulsed laser heating. These results help formulate a better understanding of solid benzophanone's reaction profile.
Description
Author Institution: Department of Chemistry, Loyola University of Chicago