Photophysics of the phases of poly(di-n-hexylsilane)

Time-resolved fluorescence and fluorescence anisotropy measurements have been performed on solution, glass, film and powdered phases of the high molecular weight polysilane poly(di-n-hexylsilane). The emission lifetime is 4 times longer in crystalline compared to solution phases of the polymer, but...

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Veröffentlicht in:	J. Phys. Chem.; (United States) 1988-07, Vol.92 (15), p.4275-4277
Hauptverfasser:	Thorne, J. R. G, Hochstrasser, R. M, Zeigler, J. M
Format:	Artikel
Sprache:	eng
Schlagworte:	400500 - Photochemistry Applied sciences CHEMICAL REACTIONS CHEMISTRY DATA DISPERSIONS EMISSION SPECTROSCOPY Exact sciences and technology EXPERIMENTAL DATA FLUORESCENCE SPECTROSCOPY GLASS HYDRIDES HYDROGEN COMPOUNDS INFORMATION INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY MIXTURES NUMERICAL DATA ORGANIC COMPOUNDS ORGANIC SILICON COMPOUNDS PHASE STUDIES PHOTOCHEMICAL REACTIONS PHOTOCHEMISTRY Physicochemistry of polymers POLYMERS Polymers and radiations POWDERS Properties and characterization SILANES SILICON COMPOUNDS SOLUTIONS SPECTROSCOPY
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Beschreibung
Zusammenfassung:	Time-resolved fluorescence and fluorescence anisotropy measurements have been performed on solution, glass, film and powdered phases of the high molecular weight polysilane poly(di-n-hexylsilane). The emission lifetime is 4 times longer in crystalline compared to solution phases of the polymer, but the decay of anisotropy is essentially unchanged. Evidence is presented for an isolated rodlike phase at low temperature.
ISSN:	0022-3654 1541-5740
DOI:	10.1021/j100326a008