Abstract A series of new biodegradable copolymers and copolyanhydrides built of trimers of fumaric and succinic acid and propylene glycol, covering a wide range of compositions, were prepared and characterized for use as drug carriers. The polymers were found to degrade within a period of weeks. Polyanhydrides loaded with ibuprofen as a model drug released the drug for a period of one week, while the polyesters released the drug for ...
