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Direct measurements of carbonyl triplet lifetime in the nanosecond range: Investigation in a polymer solution

Authors
Journal
Journal of Photochemistry
0047-2670
Publisher
Elsevier
Publication Date
Volume
5
Issue
1
Identifiers
DOI: 10.1016/0047-2670(76)85002-2

Abstract

Abstract A “picosecond” spectroscopy technique allows direct measurements of the carbonyl triplet lifetime τ T and the intersystem crossing constant K ST of polymers. We thus obtain the primary step of the Norrish type II photodegradation process and our results for the τ T values are in good agreement with these deduced by Wagner from Stern-Volmer experiments.

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