PHOTOLUMINESCENCE STUDY OF BETA-RELAXATION OF POLYETHYLENE BLENDS

被引：9

作者：

MARTINSFRANCHETTI, SM ^{[1
]}

ATVARS, TDZ ^{[1
]}

机构：

[1] UNIV ESTADUAL CAMPINAS,INST QUIM,BR-13081 CAMPINAS,SP,BRAZIL

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1993年 / 50卷 / 09期

关键词：

D O I：

10.1002/app.1993.070500913

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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.

引用

页码：1591 / 1599

页数：9

共 37 条

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