Abstract
AbstractBinaphthyl‐diyl hydrogen phosphate has been assessed for the first time as a catalyst for the ring‐opening polymerization of ε‐caprolactone (CL) and δ‐valerolactone (VL). In the presence of benzyl alcohol as coinitiator at 40–60 °C, the polymerization is quantitative and controlled both in terms of dispersity and of number‐average molecular weight corresponding to the monomer/initiator ratio. The use of a selectively protected D‐glucose derivative bearing the primary C6 hydroxyl group as initiator leads to the quantitative end‐functionalization of the polyesters in rather short reaction times (ca. 10 min at 60 °C for δ‐VL) with dispersities around 1.08–1.10. Methyl‐α‐D‐glucopyranoside has been used as a carbohydrate polyol initiator in bulk. The initiation efficiency is partial, leading to hydrophilic carbohydrates functionalized polylactones in a one‐step procedure. © 2013 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013
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