The cationic ring-opening polymerization of 1-azabicyclo[4.2.0]octane,commonly called conidine(1) was studied with some chiral tricyclic amino acid esters(6a-6f) as acylation agents to obtain optically active biopolymers(8a-8f) of the different masses.The structures of the new compounds were confirmed by FT-IR,UV and NMR,and the distribution index of the molecular weights of the polymers was determined from SEC measurements.
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