QUANTITATIVE-EVALUATION OF SOLUBLE POLYMERIC PHOTOSENSITIZERS WITH 4-NITRO-1-NAPHTHYLCARBAMOYL PENDANT GROUPS
Loading...
Date
1993
Journal Title
Journal ISSN
Volume Title
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Soluble polymeric photosensitizers, with various contents of the 4-nitro-1-naphthylcarbamoyl chromophore, and the corresponding low molecular weight model compound have been tested as triplet energy donors against trans-stilbene in dioxane solution. Stern-Volmer constants show that the higher the chromophore content in the polymer the lower is its sensitizing efficiency. This effect can be explained by efficient intramolecular self-quenching processes which take place in the functionalized polymers because of the large local concentrations of chromophore.
Description
Keywords
PARA-DIMETHYLAMINOBENZOYLATED POLYSTYRENE, 4-DIMETHYLAMINO-4'-ISOPROPYLBENZOPHENONE, STERN