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Type: Artigo de periódico
Title: Photoluminescence Study Of β Relaxation Of Polyethylene Blends
Author: Martins-Franchetti S.M.
Atvars T.D.Z.
Abstract: Secondary β relaxation of polyethylene blends (50/50 HDPE/LDPE) were studied by photoluminescence of anthracene molecules dissolved in the polymer bulk. The temperature of the β relaxation has been determined as Tβ = -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.
Editor: Publ by John Wiley & Sons Inc, New York, NY, United States
Rights: fechado
Identifier DOI: 10.1002/app.1993.070500913
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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