title: Facile one-step synthesis of monodisperse micron-sized latex particles with highly carboxylated surfaces.
abstract: A facile method for the aqueous synthesis of monodisperse and micronmeter-sized colloids with highly carboxylated surfaces is presented. The method is applied to three different monomers, styrene, methyl methacrylate, and 2,2,2-trifluoroethyl methacrylate, and illustrate tuning of the size and monodispersity in the reactions. High surface density of carboxylic acids of up to 10 COOH nm(-2) from potentiometric titrations, is achieved through copolymerization with itaconic acid. The versatility of this system is highlighted by creating highly fluorescent and monodisperse particles that can be index matched in aqueous solution and through surface modification via the carboxylic acid groups using standard amidation chemistry.
authors.affiliation: Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703, HB, Wageningen, The Netherlands.
authors.forename: Jeroen
authors.initials: J
authors.lastname: Appel
authors.forename: Sabine
authors.initials: S
authors.lastname: Akerboom
authors.forename: Remco G
authors.initials: RG
authors.lastname: Fokkink
authors.forename: Joris
authors.initials: J
authors.lastname: Sprakel
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D003102:Colloids / Q000737:chemistry; D007840:Latex / Q000737:chemistry*; D020366:Methylmethacrylate / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D008863:Microspheres; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry; D013499:Surface Properties
chemical_list: D002264:Carboxylic Acids; D003102:Colloids; D007840:Latex; D008768:Methylmethacrylates; D011137:Polystyrenes; D020366:Methylmethacrylate; C045669:2,2,2-trifluoroethyl methacrylate
keywords: colloids; emulsion polymerization; particle size distribution; refractive index; synthesis