Bismuth subsalicylate, a low-toxicity catalyst for the ring-opening polymerization (ROP) of<scp>l</scp>-lactide (<scp>l</scp>-LA) with aliphatic diol initiators: synthesis, characterization, and mechanism of initiation
María Guadalupe Ortiz-Aldaco, José E. Báez, J. Óscar C. Jiménez‐Halla
Abstract
). A mechanism of initiation is proposed based on a computational study using density functional theory (DFT), evidencing the role of the alkyl diol as an initiator, producing an alkoxide (Bi-OROH). This species then acts as a nucleophile, attacking the carbonyl group, inducing its insertion, and ultimately completing the ring-opening of l-LA.
Topics & Concepts
PolymerizationCatalysisRing-opening polymerizationLactideChemistryBismuthDiolCombinatorial chemistryPolymer chemistryOrganic chemistryPolymerbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysisAdvanced Polymer Synthesis and Characterization