Please use this identifier to cite or link to this item: https://doi.org/10.1002/pi.4491
Title: Hairy fluorescent nanoparticles from one-pot click chemistry and atom transfer radical emulsion polymerization
Authors: Yao, F.
Yan, G.-C.
Xu, L.-Q.
Fu, G.-D.
Yin, L.-H.
Pu, Y.-P.
Kang, E.-T. 
Keywords: Atom transfer radical emulsion polymerization (ATREP)
Copper-catalyzed azide-alkyne cycloaddition (CuAAC)
Fluorescent
Hairy nanoparticles
Simultaneous reactions
Issue Date: Feb-2014
Citation: Yao, F., Yan, G.-C., Xu, L.-Q., Fu, G.-D., Yin, L.-H., Pu, Y.-P., Kang, E.-T. (2014-02). Hairy fluorescent nanoparticles from one-pot click chemistry and atom transfer radical emulsion polymerization. Polymer International 63 (2) : 237-243. ScholarBank@NUS Repository. https://doi.org/10.1002/pi.4491
Abstract: Well-defined hairy and crosslinked fluorescent nanoparticles with diameters in the range 70-220 nm were obtained from simultaneous copper-catalyzed alkyne-azide cycloaddition (CuAAC) and atom transfer radical emulsion polymerization (ATREP) of a mixture of styrene, divinylbenzene, 4-vinylbenzylazide and 7-propinyloxycoumarin (Cr), using bromide-terminated poly(ethylene glycol) (PEG) as macroinitiator, Tween-20 as emulsifier, copper(I) bromide as catalyst and pentamethyldiethylenetriamine as ligand. The generation of biocompatible PEG brushes and the introduction of fluorescent functionalities as well as crosslinking of nanoparticles were realized in one step. In order to verify that functionalization and propagation of polymer chains could be realized in a controlled manner by one-pot simultaneous ATREP and CuAAC, linear block copolymers of PEG and polystyrene (PS) with partially clicked pendent Cr groups (PEG-b-(PS-c-Cr)) were synthesized. All prepared PEG-b-(PS-c-Cr) copolymers had a controlled molecular weight and defined molecular structure. The hairy fluorescent nanoparticles exhibit a low cytotoxicity and could find applications in cell labeling. © 2013 Society of Chemical Industry.
Source Title: Polymer International
URI: http://scholarbank.nus.edu.sg/handle/10635/89049
ISSN: 09598103
DOI: 10.1002/pi.4491
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