Photophysics of poly(ethylene terephthalate): ultraviolet absorption and emission

Photophysics of poly(ethylene terephthalate): ultraviolet absorption and emission

Polarized and unpolarized emission spectra for poly(ethylene terephthalate) are presented, and a new phosphorescence peak at 564 nm is reported. The spectroscopically parameterized CNDO/S3 model is used to provide a detailed description of the absorption and monomeric emission. Moreover, preliminary...

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Veröffentlicht in:Journal of physical chemistry (1952) 1991, Vol.95 (2), p.984-988
Hauptverfasser: LaFemina, John P, Arjavalingam, G
Format: Artikel
Sprache:eng
Schlagworte:
400102 - Chemical & Spectral Procedures
ABSORPTION SPECTRA
Applied sciences
CARBOXYLIC ACID SALTS
DATA
Electrical, magnetic and optical properties
EMISSION SPECTRA
Exact sciences and technology
EXPERIMENTAL DATA
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
LUMINESCENCE
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHOSPHORESCENCE
PHTHALATES
Physicochemistry of polymers
POLYMERS
Properties and characterization
SPECTRA
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Zusammenfassung:Polarized and unpolarized emission spectra for poly(ethylene terephthalate) are presented, and a new phosphorescence peak at 564 nm is reported. The spectroscopically parameterized CNDO/S3 model is used to provide a detailed description of the absorption and monomeric emission. Moreover, preliminary computations on an idealized terephthalate dimer indicate that the 368-nm fluorescence and the newly reported phosphorescence emission may be attributable to an associated ground-state dimer.
ISSN:0022-3654
1541-5740
DOI:10.1021/j100155a090