TY - JOUR
T1 - Isomerization of Diphenyl Polyenes. Part II. Fluorescence Properties of 1,8-Diphenyl-1,3,5,7-octatetraene in Poly (vinyl alcohol) Film
AU - Kawski, A.
AU - Kubicki, A.
AU - Kukliński, B.
AU - Gryczyński, I.
AU - Gryczyński, Z.
PY - 1992/10/1
Y1 - 1992/10/1
N2 - The effect of temperature on the fluorescence properties of 1,8-diphenyl-1,3,5,7-octatetraene (DPO) in poly(vinyl alcohol) film (PVA) was investigated in the range from 295 to 428 K. Upon heating above 353 K, the quantum yield of DPO increases rapidly. This effect is irreversible, similarly as the optical density in the long wavelength absorption band (320–440 nm). It has its origin in the cis-trans conversion of DPO molecules in PVA film at high temperatures. The behaviour of the fluorescence anisotropy in the same temperature range was also investigated. The emission anisotropy was found to be a viscosity indicator in the microenvironment of the DPO molecules in PVA film.
AB - The effect of temperature on the fluorescence properties of 1,8-diphenyl-1,3,5,7-octatetraene (DPO) in poly(vinyl alcohol) film (PVA) was investigated in the range from 295 to 428 K. Upon heating above 353 K, the quantum yield of DPO increases rapidly. This effect is irreversible, similarly as the optical density in the long wavelength absorption band (320–440 nm). It has its origin in the cis-trans conversion of DPO molecules in PVA film at high temperatures. The behaviour of the fluorescence anisotropy in the same temperature range was also investigated. The emission anisotropy was found to be a viscosity indicator in the microenvironment of the DPO molecules in PVA film.
UR - http://www.scopus.com/inward/record.url?scp=21144463447&partnerID=8YFLogxK
U2 - 10.1515/zna-1992-1002
DO - 10.1515/zna-1992-1002
M3 - Article
AN - SCOPUS:21144463447
VL - 47
SP - 1017
EP - 1022
JO - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
JF - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
SN - 0932-0784
IS - 10
ER -