Synthesis of poly-(L-azetidine-2-carboxylic acid)
Abstract
Synthesis of poly-(L-azetidine-2-carboxylic acid) has been achieved by polymeric self-condensation of both the pentachlorophenyl and the succinimido-esters of L-azetidine-2-carboxylic acid hydrochloride. Racemization tests have been performed on model compounds and on polymer fractions with nearly identical molecular weights (Mw) isolated from different preparations. The water content of the polymer has been determined from the water-binding isotherm at 23 °C.