Artículos de revistas
PHOTOLUMINESCENCE STUDY OF BETA-RELAXATION OF POLYETHYLENE BLENDS
Registro en:
Journal Of Applied Polymer Science. John Wiley & Sons Inc, v. 50, n. 9, n. 1591, n. 1599, 1993.
0021-8995
WOS:A1993MH12300013
10.1002/app.1993.070500913
Autor
MARTINSFRANCHETTI, SM
ATVARS, TDZ
Institución
Resumen
Secondary beta relaxation of polyethylene blends (50/50 HDPE/LDPE) were studied by photoluminescence of anthracene molecules dissolved in the polymer bulk. The temperature of the beta relaxation has been determined as T(beta) = -40-degrees-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. (C) 1993 John Wiley & Sons, Inc. 50 9 1591 1599
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