Preparation of monodisperse, fluorescent PMMA-latex colloids by dispersion polymerization.
We report a single step procedure to prepare monodisperse colloidal poly(methyl)methacrylate (PMMA) particles where fluorescent dyes are incorporated into the polymer network. The particles are sterically stabilized against flocculation by poly(12-hydroxystearic acid). The fluorescent dyes are RITC (rhodamine isothiocyanate)-aminostyrene (RAS) and 4-methylaminoethylmethacrylate-7-nitrobenzo-2-oxa-1,3-diazol (NBD-MAEM), which are prepared from (commercially available) RITC and 4-chloro-7-nitrobenzo-2-oxa-1,3-diazol (NBD-Cl), respectively, as starting materials. The particles can be grown larger with nonfluorescent PMMA. Examples of the usefulness of these model particles in colloid science are given.
Bosma
Gilles
G
Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute, Utrecht University, Padualaan 8, Utrecht, 3584 CH, The Netherlands.
Pathmamanoharan
Chellapah
C
de Hoog
Els H A
EH
Kegel
Willem K
WK
van Blaaderen
Alfons
A
Lekkerkerker
Henk N W
HN