Amphiphilic copolymers and compositions containing such polymers

摘要

Amphiphilic copolymer, containing at least a hydrophilic chain segment (A) and a hydrophobic chain segment (B), both segments being biodegradable. The copolymer may be an A(BA) x , B(AB) x or (AB) x block copolymer, being an integer between 1 and 5. Copolymers with B main chains and grafted side chains made of A chain segments.
Compositions containing such polymers.