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Photoluminescence study of β relaxation of polyethylene blends

✍ Scribed by S. M. Martins-Franchetti; T. D. Z. Atvars

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
611 KB
Volume
50
Category
Article
ISSN
0021-8995

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✦ Synopsis

Secondary p relaxation of polyethylene blends ( 5 0 / 5 0 HDPE/LDPE) were studied by photoluminescence of anthracene molecules dissolved in the polymer bulk. The temperature of the p relaxation has been determined as To = -40°C by the dependence of the ratio of vibronic components of the fluorescence band on the temperature. The molecular mechanism of this relaxation has been discussed considering the possibility of the energy migration involving anthracene molecules in the singlet electronic excited and ground states. 0 1993 John Wiley & Sons, Inc.

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