Author, as appears in the article.: Moreno, Adrian; Liu, Tong; Ding, Liang; Buzzacchera, Irene; Galia, Marina; Moller, Martin; Wilson, Christopher J.; Lligadas, Gerard; Percec, Virgil

Department: Química Analítica i Química Orgànica

URV's Author/s: Galià Clua, Marina Teresa / Lligadas Puig, Gerard / Ronda Bargalló, Juan Carlos

Keywords: Hashtag Etiqueta «#» @uroweb @residentesaeu @infoAeu

Abstract: © 2018 The Royal Society of Chemistry. Biphasic-binary mixtures of 2,2,2-trifluoroethanol (TFE) or 2,2,3,3-tetrafluoropropanol (TFP) with water were used as reaction media to synthesize well-defined poly(methyl acrylate) (PMA) with chain end functionality close to 100% by SET-LRP. Non-activated Cu(0) wire was used as a catalyst, taking advantage of the Cu(0)-activation property that these fluorinated alcohols possess. Biphasic-binary mixtures of water, containing a ligand and Cu(ii)Br2 either generated by disproportionation of Cu(i)Br or externally added, and an organic solvent, containing a monomer and a polymer, were studied. Two N-ligands were investigated: the classic tris(2-dimethylaminoethyl)amine (Me6-TREN) and tris(2-aminoethyl)amine (TREN), as a more economically attractive alternative for technological purposes. The results reported here support the replacement of Me6-TREN by TREN, taking into account the fact that the latter requires small loadings of an externally added Cu(ii)Br2 deactivator and a ligand in the water phase to mediate a living radical polymerization process. Both catalytic systems ensure efficient SET-LRP processes with first order kinetics to high conversion, linear dependence of experimental Mn on conversion, narrow molecular weight distribution, and near-quantitative chain end functionality.

Thematic Areas: Química Polymers and plastics Polymer science Organic chemistry Engenharias ii Biomedical engineering Bioengineering Biochemistry

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 17599954

Author's mail: gerard.lligadas@urv.cat juancarlos.ronda@urv.cat marina.galia@urv.cat

Author identifier: 0000-0002-8519-1840 0000-0002-0668-6600 0000-0002-4359-4510

Last page: 2327

Record's date: 2023-02-22

Journal volume: 9

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://pubs.rsc.org/en/content/articlelanding/2018/py/c8py00062j#!divAbstract

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Polymer Chemistry. 9 (17): 2313-2327

APA: Moreno, Adrian; Liu, Tong; Ding, Liang; Buzzacchera, Irene; Galia, Marina; Moller, Martin; Wilson, Christopher J.; Lligadas, Gerard; Percec, Virgil (2018). SET-LRP in biphasic mixtures of fluorinated alcohols with water. Polymer Chemistry, 9(17), 2313-2327. DOI: 10.1039/c8py00062j

Article's DOI: 10.1039/c8py00062j

Entity: Universitat Rovira i Virgili

Journal publication year: 2018

First page: 2313

Publication Type: Journal Publications