Naked and Self-Clickable Propargylic-Decorated Single-Chain Nanoparticle Precursors via Redox-Initiated RAFT Polymerization
| Autor: | Lorea Buruaga, Ana Sanchez-Sanchez, Isabel Asenjo-Sanz, José A. Pomposo |
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| Přispěvatelé: | Eusko Jaurlaritza, Diputación Foral de Guipúzcoa, CSIC-UPV - Centro de Física de Materiales (CFM) |
| Rok vydání: | 2012 |
| Předmět: |
Molecular Structure
Polymers and Plastics Chemistry Organic Chemistry Reversible addition – fragmentation chain transfer Nanoparticle Nanotechnology Single chain Polymerization Intrachain cross-linking Redox initiation Polymer chemistry Materials Chemistry Nanoparticles Polymethyl Methacrylate Click Chemistry Reversible addition−fragmentation chain-transfer polymerization Clickable Oxidation-Reduction |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1022-1336 |
| DOI: | 10.1002/marc.201200180 |
| Popis: | Protection 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. This work was supported by Gipuzkoako Foru Aldundia (project 2011-CIEN-000085-01) and Basque Government (Project S-PE11UN009). A.S.-S. thanks the PhD grant support of Basque Government . L.B. acknowledges financial support by Basque Excellence Research Center-Materials Physics Center (BERC-MPC). |
| Databáze: | OpenAIRE |
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