TRANSITION BETWEEN DILUTE AND CONCENTRATED-SOLUTION BEHAVIOR AS REVEALED BY EXCIMER FLUORESCENCE

被引：33

作者：

ROOTS, J

NYSTROM, B

机构：

[1] Institute of Physical Chemistry, University of Uppsala, S-751 21 Uppsala

来源：

EUROPEAN POLYMER JOURNAL | 1979年 / 15卷 / 12期

关键词：

D O I：

10.1016/0014-3057(79)90047-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Excimer fluorescence measurements at 25° on polystyrene, with molecular weights 111,000, 392,000 and 900,000, in 1,2-dichloroethane over an extended concentration region are reported. The curve representing the normalized ratio of excimer to monomer fluorescence intensities shows an upward curvature at c[η] ≈ 1 for all the molecular weights. This observation is attributed to enhanced intermolecular excimer formation. Some theoretical aspects on this phenomenon are also considered. © 1979.

引用

页码：1127 / 1131

页数：5

共 54 条

[1] DYNAMICAL PROPERTIES OF POLYMER-SOLUTIONS IN GOOD SOLVENT BY RAYLEIGH-SCATTERING EXPERIMENTS [J].