title: Synthesis and characterization of polycaprolactone/poly(ethylene oxide)/polylactide tri-componet copolymers.
abstract: Polycaprolactone/poly(ethylene oxide)/polylactide tri-component copolymers (PCEL) with different compositions were synthesized by copolymerization of epsilon-caprolactone and L-lactide in the presence of poly(ethylene glycol) using stannous octoate as a catalyst. The copolymers were purified and characterized by various analytical techniques such as GPC, FT-IR, 1H NMR, 13C NMR, DSC, and X-ray diffractometry. It was evidenced that these copolymers were pure tri-component compounds which exhibited partially random chain structures, and possessed good mechanical properties and variable biodegradability.
authors.affiliation: Institute of Chemistry, The Chinese Academy of Sciences, Beijing.
authors.forename: M
authors.initials: M
authors.lastname: Lang
authors.forename: J
authors.initials: J
authors.lastname: Bei
authors.forename: S
authors.initials: S
authors.lastname: Wang
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002152:Calorimetry, Differential Scanning; D002850:Chromatography, Gel; D009682:Magnetic Resonance Spectroscopy; D008422:Materials Testing; D019563:Mechanics; D011091:Polyesters / Q000138:chemical synthesis* / Q000378:metabolism; D011092:Polyethylene Glycols / Q000138:chemical synthesis* / Q000378:metabolism; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D011091:Polyesters; C016240:polycaprolactone; D011092:Polyethylene Glycols; C033616:poly(lactide)