Interactions of pyrene-labeled silica particles

被引：10

作者：

Dewar, PJ ^{[1
]}

MacGillivray, TF ^{[1
]}

Crispo, SM ^{[1
]}

Smith-Palmer, T ^{[1
]}

机构：

[1] St Francis Xavier Univ, Dept Chem, Antigonish, NS B2G 2W5, Canada

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2000年 / 228卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

silica spheres; pyrene; adsorption; surfactant; polyelectrolyte; flocculation;

D O I：

10.1006/jcis.2000.6937

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Silica spheres were prepared by the Stober method, and the method of labeling with pyrene, using aminopropylysilane as the linking agent, was optimized. Excimers between particles were formed when high concentrations of label were used. Both surfactant and polyelectrolyte addition were able to cause hoc formation when added to suspensions of the silica, but only the surfactant changed the I-1/I-3 ratio and diminished excimer formation. (C) 2000 Academic Press.

引用

页码：253 / 258

页数：6

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