Synthesis of defined polyhedral oligosilsesquioxane-containing diblock and triblock methacrylate copolymers by atom transfer radical polymerization
| Autor: | Miroslav Janata, Petr Vlček, Vladimír Raus, Libor Matějka, Eva Čadová, Antonín Sikora, Petra Látalová |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Polymers and Plastics Atom-transfer radical-polymerization Radical polymerization Dispersity General Chemistry Methacrylate Surfaces Coatings and Films chemistry.chemical_compound Living free-radical polymerization Monomer chemistry Polymer chemistry Materials Chemistry Copolymer Reversible addition−fragmentation chain-transfer polymerization |
| Zdroj: | Journal of Applied Polymer Science. 128:4294-4301 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.38658 |
| Popis: | Defined diblock and triblock copolymers composed of methyl methacrylate-co-glycidyl methacrylate block and 3-{3,5,7,9,11,13,15-hepta(2-methylpropyl)-pentacyclo[9.5.1.13,9.15,15.17,13]-octasiloxan-1-yl}propyl methacrylate block(s), i.e., P(MMA-co-GMA)-b-PiBuPOSSMA and PiBuPOSSMA-b-P(MMA-co-GMA)-b-PiBuPOSSMA, were synthesized by atom transfer radical polymerization (ATRP). First, monofunctional and bifunctional P(MMA-co-GMA) copolymers were synthesized by ATRP. Subsequently, these copolymers were successfully used as macroinitiators for ATRP of POSS-containing methacrylate monomer. The process showed high initiation efficiency of macroinitiators and led to products with low dispersity. The synthesized block copolymers were characterized by size exclusion chromatography, 1H-NMR spectroscopy and their glass transition temperatures were determined by differential scanning calorimetry. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013 |
| Databáze: | OpenAIRE |
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