Synthesis of defined polyhedral oligosilsesquioxane-containing diblock and triblock methacrylate copolymers by atom transfer radical polymerization

0391497 - ÚMCH 2014 RIV US eng J - Journal Article
Janata, Miroslav - Sikora, Antonín - Látalová, Petra - Čadová, Eva - Raus, Vladimír - Matějka, Libor - Vlček, Petr
Synthesis of defined polyhedral oligosilsesquioxane-containing diblock and triblock methacrylate copolymers by atom transfer radical polymerization.
Journal of Applied Polymer Science. Roč. 128, č. 6 (2013), s. 4294-4301. ISSN 0021-8995. E-ISSN 1097-4628
R&D Projects: GA ČR GAP106/12/0844; GA ČR GAP108/12/1459
Institutional support: RVO:61389013
Keywords : copolymers * nanostructured polymers * radical polymerization
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 1.640, year: 2013

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.
Permanent Link: http://hdl.handle.net/11104/0220986