title: Hemicellulose-based multifunctional macroinitiator for single-electron-transfer mediated living radical polymerization.
abstract: A multifunctional macroinitiator for single-electron-transfer mediated living radical polymerization (SET-LRP) was designed from acetylated galactoglucomannan (AcGGM) by α-bromoisobutyric acid functionalization of the anomeric hydroxyl groups on the heteropolysaccharide backbone. This macroinitiator, with a degree of substitution of 0.15, was used in the SET-LRP of methyl acrylate, catalyzed by Cu(0)/Me(6)-TREN in DMSO, DMF, or DMSO/H(2)O in various concentrations. Kinetic analyses confirm high conversions of up to 99.98% and a living behavior of the SET-LRP process providing high molecular weight hemicelluloses/methyl acrylate hybrid copolymers with a brush-like architecture.
authors.affiliation: Fibre- and Polymer Technology, Royal Institute of Technology (KTH), SE-100 44 Stockholm, Sweden.
authors.forename: Jens
authors.initials: J
authors.lastname: Voepel
authors.forename: Ulrica
authors.initials: U
authors.lastname: Edlund
authors.forename: Ann-Christine
authors.initials: AC
authors.lastname: Albertsson
authors.forename: Virgil
authors.initials: V
authors.lastname: Percec
mesh_terms: D000107:Acetylation; D000179:Acrylates / Q000737:chemistry*; D002384:Catalysis; D003300:Copper / Q000737:chemistry; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D004583:Electrons; D005609:Free Radicals / Q000737:chemistry; D007700:Kinetics; D008351:Mannans / Q000737:chemistry*; D011134:Polysaccharides / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D000179:Acrylates; D005609:Free Radicals; D008351:Mannans; D011134:Polysaccharides; C443804:galactoglucomannan; D003300:Copper; C007916:hemicellulose; C035956:methyl acrylate; D004121:Dimethyl Sulfoxide