Photodegradation of pyrene-labeled polystyrene adsorbed on silica surface in chloroform

被引：21

作者：

Chen, W

Durning, CJ

Turro, NJ ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA

来源：

MACROMOLECULES | 1999年 / 32卷 / 12期

关键词：

D O I：

10.1021/ma9900885

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A study was carried out focusing on the photodegradation of the pyrene labels on polystyrene (PS) in chloroform (CHCl3) and adsorbed on silica surface contacting with CHCl3 caused by excitation light under conditions typical for photophysical studies of polymers. Fluorescence and excitation spectra were taken on a double spectrometer with a 450 W xenon lamp using front face excitation. Analysis of the obtained spectra indicate that the excitation light from the spectrometer caused the photodegradation of pyrene and pyrene-labeled PS.

引用

页码：4151 / 4153

页数：3

共 16 条

[1] FLUORESCENCE STUDIES OF POLYMER ADSORPTION .1. REARRANGEMENT AND DISPLACEMENT OF PYRENE-TERMINATED POLY(ETHYLENE GLYCOL) ON COLLOIDAL SILICA PARTICLES [J].