| 초록 |
Various molecular weight and composition of PCL/PEG multiblock copolymers were prepared by the coupling reaction of PCL-PEG-PCL triblock copolymers which have various composition using hexamethylene diisocyanate (HDI) as a chain extension reagent. The multiblock copolymer composition and structure were confirmed by 1H NMR and GPC measurements. Furthemore, the crystallization, surface properties and mechanical properties of multiblock copolymers were investigated by DSC, UTM and surface tension technique. In vitro cell culture studies were conducted on film-type multiblock copolymers using primary rabbit chondrocytes. |
