Synthesis of 1,4-polybutadiene-g-poly(ethylene oxide) via the macromonomer approach by ROMP

Dao Le (1) , V. Montembault (1) , Sagrario Pascual (1) , Laurent Fontaine (1) , Floraine Collette (2) , Valérie Héroguez (2, 3)

1 IMMM - Institut des Molécules et Matériaux du Mans
2 LCPO - Laboratoire de Chimie des Polymères Organiques
3 Team 1 LCPO : Polymerization Catalyses & Engineering

A poly(ethylene oxide) (PEO) macromonomer end-capped by a polymerizable cyclobutene group has been polymerized by ring-opening metathesis polymerization (ROMP) using Grubbs' second generation (G2) and third generation (G3) catalysts. The macromonomer having a hydrophilic PEO conjugated with a hydrophobic cyclobutene moiety shows self-association properties in water as demonstrated by fluorescence spectroscopy. Therefore, the PEO-based cyclobutene macromonomer was subjected to ROMP both in miniemulsion and in solution. Well-defined 1,4-polybutadiene-g-PEOs with molecular weights ranging from 19 800 to 38 000 g mol(-1) were obtained using G2 in solution with excellent control over molecular weight distribution (PDI = 1.07-1.11).

Mots clés: RING-OPENING-METATHESIS; CYLINDRICAL MOLECULAR BRUSHES; RADICAL POLYMERIZATION; GRAFT-COPOLYMERS; RAFT POLYMERIZATION; BLOCK-COPOLYMERS; AQUEOUS-MEDIUM; MINIEMULSION; POLYMERS; CATALYSTS

Domaines: Polymères

Dao Le, V. Montembault, Sagrario Pascual, Laurent Fontaine, Floraine Collette, et al.. Synthesis of 1,4-polybutadiene-g-poly(ethylene oxide) via the macromonomer approach by ROMP. Polymer Chemistry, 2013, 4 (6), pp.2168-2173. ⟨10.1039/c3py21103g⟩. ⟨hal-00818348⟩