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Updated: Mar 11, 2026

Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
Published on: October 29, 2013
Comb Poly(Oligo(2-Ethyl-2-Oxazoline)Methacrylate)-Peptide Conjugates Prepared by Aqueous Cu(0)-Mediated
Jennifer Collins1, Sacha J Wallis1, Alexandre Simula1
1Chemistry Department, University of Warwick, Coventry, CV4 7AL, UK.
Abstract:
The controlled synthesis of poly(oligo(2-ethyl-2-oxazoline)methacrylate) (P(OEtOxMA)) polymers by Cu(0)-mediated polymerization in water/methanol mixtures is reported. Utilizing an acetal protected aldehyde initiator for the polymerization, well-defined polymers are synthesized (>99% conversion, Ð < 1.25) with subsequent postpolymerization deprotection resulting in α-aldehyde end group containing comb polymers. These P(OEtOxMA) are subsequently site-specifically conjugated, via reductive amination, to a dipeptide (NH2 -Gly-Tyr-COOH) as a model peptide, prior to conjugation to the functional peptide oxytocin. The resulting oxytocin conjugates are evaluated in comparison to poly(oligo(ethylene glycol) methyl ether methacrylate) combs synthesized in the same manner for potential effects on thermal stability in comparison to the native peptide.
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