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Thermo-sensitive and environmental friendly diblock copolymers obtained via ATRP/ROP combination

Abstract : Atom Transfer Radical Polymerization (ATRP) and Ring-Opening Polymerization (ROP) were combined to synthesize diblock environmental friendly poly(E-caprolactone)-block-poly(methyl ether diethylene glycol methacrylate) (PCL-b-PMEO(2)MA) through a sequential two-step strategy. These PCL-b-PMEO2MA copolymers were produced using 2-hydroxyethyl-2-bromoisobutyrate as bifunctional initiator. In the first step, E-caprolactone was initiated by the hydroxyl group of this particular initiator. Tin octoate, zinc triflate and bismuth triflate were tested as non-toxic catalysts to obtain alpha-bromide-omega-hydroxy bifunctional PCL macroinitiator. Secondly, the controlled ATRP of MEO(2)MA was tuned from the same bifunctional initiator. Finally, PCL-b-PMEO(2)MA were produced by carrying out ATRP of MEO(2)MA from PCL macroinitiator. Preliminary data on self-assembly of such thermo-sensitive PCL-b-PMEO(2)MA in aqueous phase are given.
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Submitted on : Wednesday, March 29, 2017 - 10:46:49 AM
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Hicham Qayouh, Cécile Nouvel, Jérôme Babin, Mustapha Raihane, Mohammed Lahcini, et al.. Thermo-sensitive and environmental friendly diblock copolymers obtained via ATRP/ROP combination. Industrial Crops and Products, Elsevier, 2015, 72 (SI), pp.60-68. ⟨10.1016/j.indcrop.2015.01.047⟩. ⟨hal-01497726⟩



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