Rapid and controlled synthesis of hydrophobic polyethers by monomer activation

Matthieu Gervais (1) , Anne-Laure Brocas (1) , Alain Deffieux (1, 2) , Emmanuel Ibarboure (1) , Stéphane Carlotti (1, 2)

1 LCPO - Laboratoire de Chimie des Polymères Organiques
2 Team 1 LCPO : Polymerization Catalyses & Engineering

A series of polyethers was prepared by monomer-activated anionic polymerization. The combination of an ammonium salt with triisobutylaluminum allowed the polymerization of epoxides containing various aliphatic side chains (1,2-butene oxide (BO), 1,2-hexene oxide (HO), and 1,2-octadecene oxide (ODO)) or a fluorinated group (3,3,3-trifluoro-1,2-epoxypropane (TFEP)). Polymers of molar masses up to 35 000 g/mol with relatively narrow molar mass distribution could be synthesized. Polymer structures were analyzed by C-13 NMR, and the thermal behavior was studied by differential scanning calorimetry (DSC). The evolution of hydrophobicity was investigated according to the length and composition of the side chain. Using a long aliphatic side-chain epoxide (C16) imparted crystallinity to the resulting atactic polymer.

Mots clés: hydrophobicity; monomer activation; polyether; poly(alkylene oxide); ring-opening; polymerization

Domaines: Polymères

Matthieu Gervais, Anne-Laure Brocas, Alain Deffieux, Emmanuel Ibarboure, Stéphane Carlotti. Rapid and controlled synthesis of hydrophobic polyethers by monomer activation. Pure and Applied Chemistry, 2012, 84 (10), pp.2103-2111. ⟨10.1351/PAC-CON-11-11-1616⟩. ⟨hal-00817190⟩