ABSTRACT

Linear polyesters (m ost often polylactides and poly[lactide-coglycolide] copolymers) found many applications in medicine [1 -12 ]. They function usually as temporary mechanical supports, connecting elem ents or temporary containers, m ost often of nano-or m icrom eter size, of bioactive and in many instances very potent low molecular weight compounds. The main advantages of these polymers are related to easily adjustable polymerization conditions for obtaining polymers with controlled molecular weight, microstructure, and topology, in a way assuring required mechanical strength, convenient processability, and rate o f degradation [13-17].