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Naked and self-clickable propargylic-decorated single-chain nanoparticle precursors via redox-initiated RAFT polymerization

AuthorsSánchez-Sánchez, Ana; Asenjo-Sanz, Isabel; Buruaga, Lorea; Pomposo, José A.
KeywordsReversible addition – fragmentation chain transfer
Redox initiation
Intrachain cross-linking
Issue Date2012
CitationMacromolecular Rapid Communications 33(15): 1262-1267 (2012)
AbstractProtection of acetylenic monomers is a common practice to avoid parasitic side reactions during polymerization. Herein, we report that redox-initiated RAFT polymerization allows the direct, room temperature synthesis of a variety of single-chain nanoparticle precursors (displaying narrow molecular weight dispersity, M̄ wM̄ n = 1.12 -1.37 up to M̄ w = 100 kDa) containing well-defined amounts of naked, unprotected acetylenic functional groups available for rapid and quantitative intrachain cross-linking via metal-catalyzed carbon-carbon coupling (i.e., C-C click chemistry). To illustrate the useful self-clickable character of the new unprotected acetylenic precursors, single-chain nanoparticles have been prepared for the first time in a facile and highly efficient manner by copper-catalyzed alkyne homocoupling (i.e., Glaser-Hay coupling) at room temperature under normal air atmosphere.
Publisher version (URL)http://dx.doi.org/10.1002/marc.201200180
Identifiersdoi: 10.1002/marc.201200180
issn: 1022-1336
e-issn: 1521-3927
Appears in Collections:(CFM) Artículos
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