C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 297/02 (2006.01) B01F 17/00 (2006.01)
Patent
CA 2257313
The invention relates to a process for the preparation of hydrophobic/ hydrophile AB block copolymers in which block A comprises a monomeric unit, a being a conjugated diene and block B comprises a monomeric unit, b being an epoxyde. It also relates to the AB block polymer synthesised by the production process, and micellar systems which are produced from the AB block polymer. According to the invention, synthesis of the AB block polymer occurs in two stages, the first stage being preparation of the block A in an apolar solvent, and the second stage being preparation of the block B in a polar solvent.
L'invention concerne un procédé de fabrication de polymères séquencés AB hydrophobes-hydrophiles, dans lesquels le bloc A est constitué par le motif monomère a = diène conjugué, et le bloc B, par le motif monomère b = époxyde, ainsi que le polymère séquencé AB synthétisé suivant le procédé de l'invention et des systèmes micellaires formés à partir du polymère séquencé AB. Conformément à l'invention, la synthèse du polymère séquencé s'effectue en deux étapes, la première étape étant la fabrication du bloc A dans un solvant non polaire, et la deuxième étape, la fabrication du bloc B dans un solvant polaire.
Allgaier Jurgen
Richter Dieter
Willner Lutz
Forschungszentrum Julich Gmbh
Smart & Biggar
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