USING THE EMISSION PROPERTIES OF AN INTRAMOLECULAR EXCIMER-FORMING PROBE MOLECULE TO DETERMINE THE EFFECT OF HYDROSTATIC-PRESSURE ON LOCAL POLYMER DYNAMICS

被引：3

作者：

FREEMAN, BD

BOKOBZA, L

SERGOT, P

MONNERIE, L

DESCHRYVER, FC

机构：

[1] ECOLE SUPER PHYS & CHIM IND,PHYS CHIM STRUCT & MACROMOLEC,10 RUE VAUQUELIN,F-75231 PARIS 05,FRANCE

[2] CATHOLIC UNIV LEUVEN,DEPT CHEM,B-3030 HEVERLEE,BELGIUM

来源：

JOURNAL OF LUMINESCENCE | 1991年 / 48-9卷

关键词：

D O I：

10.1016/0022-2313(91)90118-F

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The fluorescence lifetime of the intramolecular excimer-forming probe molecule meso-2,4-di(N-carbazolyl) pentane dissolved in cis-polyisoprene and poly(propylene oxide) has been determined as a function of hydrostatic pressure. The rate of the local scale motion of the probe required to form the intramolecular excimer conformation is shown to be controlled by polymer segmental motions connected with the glass-rubber transition phenomenon. The experimental data are compared with the predictions of several free volume-based models of polymer dynamics.

引用

页码：259 / 264

页数：6

共 13 条

[1]

[Anonymous], 1970, PHOTOPHYSICS AROMATI

[2]

[Anonymous], 1980, VISCOELASTIC PROPERT

[3] STUDIES OF THE MOBILITY OF PROBES IN POLY(PROPYLENE OXIDE) .2. EXCIMER FLUORESCENCE TECHNIQUE [J].