Autor según el artículo: Maurya DS; Malik A; Feng X; Bensabeh N; Lligadas G; Percec V

Departamento: Química Analítica i Química Orgànica

Autor/es de la URV: Lligadas Puig, Gerard

Palabras clave: Single-electron-transfer Pd catalyst Methyl acrylate Living radical polymerization Heteroaryl mesylates Cu(0) Complete conversion Chain-end functionality Biphasic mixtures Aryl mesylates

Resumen: A mixed-ligand effect was observed for mixtures of tris(2-dimethylaminoethyl)amine (Me6-TREN) with tris(2-aminoethyl)amine (TREN) ligands during Cu(0) wire-catalyzed, single-electron transfer-living radical polymerization (SET-LRP) of methyl acrylate (MA) initiated with bis(2-bromopropionyl)ethane (BPE) in DMSO. The external order of reaction of SET-LRP both in the presence of Me6-TREN, TREN and of the mixed-ligand Me6-TREN/TREN, in DMSO, demonstrated a catalytic activity for DMSO similar to that reported in the presence of Cu(0) powder. The catalytic activity of DMSO, with close to 100% chain-end functionality, facilitates the much less expensive TREN to act as a very efficient ligand that is competitive with Me6-TREN and with the mixed-ligand and revitalizes TREN into an excellent ligand. The highest activity of the mixed-ligand at 1/1 ratio between ligands suggests that in addition to a fast exchange between these two ligands, a new single dynamic ligand stabilized by hydrogen-bonding, may generate these results.

Áreas temáticas: Química Polymers and plastics Polymer science Medicina ii Materials chemistry Materiais Interdisciplinar Farmacia Engenharias iv Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, organic Biotecnología Biomaterials Bioengineering Biochemistry & molecular biology Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 1525-7797

Direcció de correo del autor: gerard.lligadas@urv.cat

Identificador del autor: 0000-0002-8519-1840

Página final: 1919

Fecha de alta del registro: 2023-02-26

Volumen de revista: 21

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://pubs.acs.org/doi/10.1021/acs.biomac.9b01765

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Biomacromolecules. 21 (5): 1902-1919

Referencia de l'ítem segons les normes APA: Maurya DS; Malik A; Feng X; Bensabeh N; Lligadas G; Percec V (2020). Me6-TREN/TREN Mixed-Ligand Effect During SET-LRP in the Catalytically Active DMSO Revitalizes TREN into an Excellent Ligand. Biomacromolecules, 21(5), 1902-1919. DOI: 10.1021/acs.biomac.9b01765

DOI del artículo: 10.1021/acs.biomac.9b01765

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2020

Página inicial: 1902

Tipo de publicación: Journal Publications