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2006-09-04 - Article/Dans un journal avec peer-review - Anglais - 6 page(s)

Paneva Dilyana, Mespouille Laetitia , Manolova Nevena, Degée Philippe, Rashkov Iliya, Dubois Philippe , "Preparation of well-defined poly[ethylene oxide-b-(sodium 2-acrylamido-2-methyl-1-propanesulfonate)] diblock copolymers by water-based atom transfer radical polymerization" in Macromolecular Rapid Communications, 27, 17, 1489-1494

  • Edition : Wiley, Weinheim (Germany)
  • Codes CREF : Chimie macromoléculaire (DI1315), Catalyses hétérogène et homogène (DI1334)
  • Unités de recherche UMONS : Matériaux Polymères et Composites (S816)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) 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 a-methoxy-?-(2-methylbromoisobutyrate) poly(ethylene oxide)s (MeO-P[EO]m-BriB with m ranging from 12 to 113) and CuBr?·?2Bpy (Bpy for 2,2'-bipyridyl) as macroinitiator 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 polydispersity, even at high monomer conversion (?˜?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.

Notes :
  • (Anglais) Publié en ligne le 28 août 2006
  • (Anglais) Lecture en ligne: http://onlinelibrary.wiley.com/doi/10.1002/marc.200600389/pdf
Identifiants :
  • DOI : 10.1002/marc.200600389