EFFECT OF MOLECULAR-WEIGHT ON TRIPLET EXCITON PROCESSES .3. QUENCHING OF POLY(2-VINYLNAPHTHALENE) DELAYED EMISSION BY PIPERYLENE

被引：11

作者：

PASCH, NF ^{[1
]}

MCKENZIE, RD ^{[1
]}

WEBBER, SE ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT CHEM,AUSTIN,TX 78712

来源：

MACROMOLECULES | 1978年 / 11卷 / 04期

关键词：

D O I：

10.1021/ma60064a023

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The efficiency of piperylene quenching of phosphorescence and delayed emission of different molecular weight samples of poly(2-vinylnaphthalene) is shown to increase with molecular weight. We interprete this finding as demonstrating that increasing the polymer length allows a triplet exciton more opportunities to encounter a quencher until the polymer length exceeds the exciton diffusion length (approximately 700 chromophores for poly(2-vinylnaphthalene)). All experiments reported are for 1:1 THF-Et2O matrices at 77 K. © 1978, American Chemical Society. All rights reserved.

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页码：733 / 735

页数：3

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