1) 货号: ZZR-D-L-1k2k;  2) 英文品名: PEG-PLA, PEG MW 1000 & PLA MW 2000 ;  3) 中文品名: 聚乙二醇-b-聚乳酸, 聚乙二醇 MW 1000 & 聚乳酸 MW 2000 ;  4) 规格: 500mg/1g/5g;  5) 描述: PEG-PLA is an amphiphilic AB diblock copolymer consisting of a hydrophilic block polyethylene glycol (PEG) or polyethylene oxide (PEO) and a hydrophobic block polylactic acid or polylactide (PLA). The PEG polymer is capped a methyl ether group, and the hydrophobic block terminates with a hydroxyl group. PEGylated copolymers with biodegradable and biocompatible polyester segments can be used to prepare core-shell micelles, nanoparticles and microspheres. The hydrolytic degradability of polyester segments depend on the molecular weight and the spacer between ester groups (lactide, glycolide or caprolactone). PEG-PLA with other MWs is also offered. Related literature: 1) Preparation, characterization and properties of polylactide (PLA) - poly(ethylene glycol) (PEG) copolymers: a potential drug carrier. J Appl Polym Sci 1990;39: 19. 2) Biodegradable long-circulating polymeric nanospheres. Science 1994;363:16003.  甄准免费电话 400-002-3832