Using methionine alkylation and demethylation methodology, we prepared a series of oligoethylene glycol functionalized poly(homocysteine) derivatives, all from the same parent poly(methionine) sample. These polymers undergo reversible temperature dependent solubility transitions (lower critical solution temperature behavior) in aqueous media. These and related polypeptides are being developed for use in stimuli responsive block copolypeptide assemblies.
Gharakhanian, E. G.; Deming, T. J. J. Phys. Chem. B, 2016, 120, 6096-6101.
Kramer, J. R.; Deming, T. J. J. Amer. Chem. Soc., 2014, 136, 5547-5550.