Electrophilic Modification of Polystyrene Nanospheres

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Abstract:

Monodisperse polystyrene nanospheres synthesized via emulsifier-free emulsion polymerization were modified at their surfaces with amino and hydroxy groups using trimethylsilyl azide and bis(trimethylsilyl) peroxide, respectively, in the presence of trifluoromethanesulfonic acid. The acid chloride functionality was also introduced onto the surface using AlCl3-oxalyl chloride. The size, integrity, nature and functionality of the nanospheres were investigated by Scanning Electron Microscopy, diffuse reflectance IR and UV-Vis spectroscopy. The surface amino, hydroxyl and carboxylate groups were easily transformed into other useful functionalities by known methodologies.

Keywords: AMINATION; CARBOXYLATION; MONODISPERSE; POLYSTYRENE NANOSPHERES; SURFACE FUNCTIONALIZATION HYDROXYLATION

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2005.128

Publication date: March 1, 2005

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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