Author, as appears in the article.: Moreno, Adrian; Liu, Tong; Galia, Marina; Lligadas, Gerard; Percec, Virgil
Department: Química Analítica i Química Orgànica
URV's Author/s: Galià Clua, Marina Teresa / Lligadas Puig, Gerard
Keywords: Hashtag Etiqueta «#» @uroweb @residentesaeu @infoAeu
Abstract: © 2018 The Royal Society of Chemistry. Single electron transfer-living radical polymerization (SET-LRP) provides excellent control over polymer chain-end functionality. The chain ends of poly(butyl acrylate) (PBA), prepared by biphasic SET-LRP in an acetone/water mixture using a non-activated Cu(0) wire/TREN/Cu(ii)X2 catalytic system, could not be reacted quantitatively using a biphasic reaction mixture of potassium acrylate (KA) in acetonitrile at 75 °C. This procedure was previously successfully applied to poly(methyl acrylate). The PBA chain ends showed lower reactivity due to their higher hydrophobicity and sterically hindered nature. However, the chain extension of α-bromo and α,ω-dibromo PBA with a few monomeric units of MA dramatically changed the reactivity of PBA. Thus, acrylate-functionalized macromonomers and telechelics based on PBA could be successfully prepared by merging biphasic SET-LRP, chain extension with MA and heterogeneous esterification with KA in acetonitrile at 75 °C. This three step methodology, that can be simplified by carrying out two or even three steps in one pot, is expected to become a general route for the preparation of acrylate-functionalized polyacrylates derived from monomers with hydrophobic and sterically hindered substituents.
Thematic Areas: Química Polymers and plastics Polymer science Organic chemistry Engenharias ii Biomedical engineering Bioengineering Biochemistry
ISSN: 17599954
Author's mail: marina.galia@urv.cat gerard.lligadas@urv.cat
Author identifier: 0000-0002-4359-4510 0000-0002-8519-1840
Last page: 1971
Record's date: 2024-09-07
Journal volume: 9
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Polymer Chemistry. 9 (15): 1961-1971
APA: Moreno, Adrian; Liu, Tong; Galia, Marina; Lligadas, Gerard; Percec, Virgil (2018). Acrylate-macromonomers and telechelics of PBA by merging biphasic SET-LRP of BA, chain extension with MA and biphasic esterification. Polymer Chemistry, 9(15), 1961-1971. DOI: 10.1039/c8py00156a
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
First page: 1961
Publication Type: Journal Publications
Repositori URV