[3PS-168]
Living Polymerization of Glycidyl Progargyl Ether using Various Initiators Facilitated by Organocatalysis
발표자 ()
연구책임자 ()
Abstract
Alkyne functionality enables chemoselective reactions, such as azide-alkyne cycloaddition, broadening polymer applications. Glycidyl propargyl ether (GPE) enables the synthesis of alkyne-functionalized polyethers via ring-opening polymerization (ROP), but anionic ROP with strong bases like tBuP4 fails due to alkyne acidity. Here, we introduce controlled polymerization of GPE via organocatalysis using tBuP1 or tBuP2 with triethylborane. Characterization by ¹H NMR, GPC, and MALDI-ToF confirmed that polymerization with 1,4-benzenedimethanol (BDM) as an initiator achieved a dispersity below 1.2 and a degree of polymerization up to 100. Polymerization was successful with various initiators, including benzyl alcohol and polyethylene glycol. Furthermore, BDM enabled the synthesis of polyethers with hydroxyl groups at both termini, facilitating step-growth polymerization with diisocyanates to yield alkyne-functionalized polyether-based polyurethanes.<br />