SOLVENT EFFECT ON THE PHOTOPHYSICS OF BISPHENOL-A-BASED POLYCARBONATEAND DIPHENYLCARBONATE

Citation
Ge. Hoyle et al., SOLVENT EFFECT ON THE PHOTOPHYSICS OF BISPHENOL-A-BASED POLYCARBONATEAND DIPHENYLCARBONATE, Canadian journal of chemistry, 73(11), 1995, pp. 2062-2068
Citations number
15
Categorie Soggetti
Chemistry
ISSN journal
00084042
Volume
73
Issue
11
Year of publication
1995
Pages
2062 - 2068
Database
ISI
SICI code
0008-4042(1995)73:11<2062:SEOTPO>2.0.ZU;2-#
Abstract
Polycarbonate and diphenylcarbonate exhibit an anomalous fluorescence emission with peak maximum around 350 nm in polar solvents that may be attributed to the association of diarylcarbonate moieties in a polar solvent cage. The red-shifted emission is attributed to intermolecular interactions in polar solvents and intramolecular interactions in pol ycarbonate. The photophysical behavior of polycarbonate and diphenylca rbonate is different from that of 1,3-diphenylpropane where a red-shif ted emission is due to excimers formed by phenyl groups separated by t hree carbon atoms and is independent of the polarity of the solvent.