TY - JOUR
T1 - Preparation of well-defined poly[(ethylene oxide)-block-(sodium 2-acrylamido-2-methyl-1-propane sulfonate)] diblock copolymers by water-based atom transfer radical polymerization
AU - Paneva, Dilyana
AU - Mespouille, Laetitia
AU - Manolova, Nevena
AU - Degée, Philippe
AU - Rashkov, Iliya
AU - Dubois, Philippe
PY - 2006/9/4
Y1 - 2006/9/4
N2 - Well-defined poly[(ethylene oxide)-block-(sodium 2-acrylamido-2-methyl-1- propane sulfonate)] diblock copolymers [P(EOm-b-AMPSn)], have been obtained by water-based ATRP using α-memoxy-ω-(2- methylbromoisobutyrate) poly(ethylene oxide)s (MeO-P[EO]m-Br iB with m ranging from 12 to 113) and CuBr · 2Bpy (Bpy for 2,2′-bipyridyl) as macro-initiator and catalytic complex, respectively. Compared to direct polymerization in water, it has been demonstrated that the water/ methanol (3:1, v/v) mixture is better suited for predicting the final number-average molar mass from the initial monomer-to-macroinitiator molar ratio and achieving a quite narrow poly-dispersity, even at high monomer conversion (M̄w/M̄n ≈ 1.4 at 80% conversion). The effect of temperature, solvent mixture composition and addition of NaCl salt on the polymerization rate and extent of control over the copolymer molecular parameters have been highlighted as well.
AB - Well-defined poly[(ethylene oxide)-block-(sodium 2-acrylamido-2-methyl-1- propane sulfonate)] diblock copolymers [P(EOm-b-AMPSn)], have been obtained by water-based ATRP using α-memoxy-ω-(2- methylbromoisobutyrate) poly(ethylene oxide)s (MeO-P[EO]m-Br iB with m ranging from 12 to 113) and CuBr · 2Bpy (Bpy for 2,2′-bipyridyl) as macro-initiator and catalytic complex, respectively. Compared to direct polymerization in water, it has been demonstrated that the water/ methanol (3:1, v/v) mixture is better suited for predicting the final number-average molar mass from the initial monomer-to-macroinitiator molar ratio and achieving a quite narrow poly-dispersity, even at high monomer conversion (M̄w/M̄n ≈ 1.4 at 80% conversion). The effect of temperature, solvent mixture composition and addition of NaCl salt on the polymerization rate and extent of control over the copolymer molecular parameters have been highlighted as well.
KW - Atom transfer radical polymerization (ATRP)
KW - Diblock copolymers; poly[(ethylene oxide)-block-(sodium 2-acryl-amido-2-methyl-1-propane sulfonate)] [P(EO-6-AMPS)]
KW - Water-based ATRP
UR - http://www.scopus.com/inward/record.url?scp=33748939386&partnerID=8YFLogxK
U2 - 10.1002/marc.200600389
DO - 10.1002/marc.200600389
M3 - Article
AN - SCOPUS:33748939386
SN - 1022-1336
VL - 27
SP - 1489
EP - 1494
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 17
ER -