Synthesis of sequence-defined acrylate oligomers via photo-induced copper-mediated radical monomer insertions

Autor:	Thomas Junkers, Peter Adriaensens, Gunter Reekmans, Joke Vandenbergh
Rok vydání:	2015
Předmět:	Acrylate chemistry.chemical_compound Column chromatography Monomer chemistry Radical polymerization Polymer chemistry Size-exclusion chromatography Dispersity Infrared spectroscopy Sequence (biology) General Chemistry
Zdroj:	Chemical Science. 6:5753-5761
ISSN:	2041-6539 2041-6520
Popis:	Photo-induced copper-mediated radical polymerization is used to synthesize monodisperse sequence defined acrylate oligomers via consecutive single unit monomer insertion reactions and intermediate purification of the compounds by column chromatography or preparative recycling size exclusion chromatography. Monomer conversions are followed during reaction by means of infrared spectroscopy. When reaction conditions are chosen carefully and any residues from chlorinated solvents are avoided, 100% pure Br end capped sequence defined oligomers are obtained, demonstrating the convenience and power of photo-induced copper mediated radical insertion for establishing sequence control. Within this work, a library of sequence defined oligomers containing polar and apolar ester groups have been obtained, and for the first time, perfectly monodisperse acrylate pentamers became accessible from radical insertion reactions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::982938bcdf20e9b7c987eef0cddfffde https://doi.org/10.1039/c5sc02035b Zobrazit plný text záznamu