Synthesis of non-aqueous fluorescent hard-sphere polymer colloids

被引：43

作者：

Jardine, RS ^{[1
]}

Bartlett, P ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2002年 / 211卷 / 2-3期

基金：

英国工程与自然科学研究理事会;

关键词：

polymer latices; dispersion polymerisation; fluorescence; confocal microscopy; hard-spheres;

D O I：

10.1016/S0927-7757(02)00258-3

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：

We describe the synthesis of fluorescent colloidal polymer spheres which when suspended in non-aqueous solvents behave as classical hard spheres. Monodisperse poly(methyl methacrylate) particles with sizes varying between 200 and 600 nm have been prepared by dispersion copolymerisation of methyl methylacrylate, methacrylic acid and the fluorescent monomer, 7-nitrobenzo-2-oxa-1,3-diazole-methyl methacrylate. Increasing the concentration of dyed particles in suspension resulted in the rapid nucleation and growth of colloidal crystals. Measurement of the equilibrium phase behaviour confirmed that the potential between dyed particles was close to hard-sphere. The resulting polymer colloids provide an ideal model system for the study of colloidal phenomena using fluorescent confocal microscopy. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：127 / 132

页数：6

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