Influence of Average Molecular Weights of Poly(DL-Lactic Acid-Co-Glycolic Acid) Copolymers 50/50 on Phase Separation and in Vitro Drug Release from Microspheres

Abstract
The phase separation of fractionated poly(DL-lactic acid-co-glycolic acid) copolymers 50/50 was determined by silicone oil addition. Polymer fractionation by preparative size exclusion chromatography...