Preparation and characterization of a type of ladder-like poly(phenyl silsesquioxane) based hybrid star-shaped copolymer of epsilon-caprolactone

摘要

Combination of the organic-inorganic hybrid such as silsesquioxane with epsilon-caprolactone will lead to materials expected to be environmentally friendly and applicable to biomedical usages. A ladder-like poly(phenyl silsesquioxane) based hybrid star-shaped copolymer of epsilon-caprolactone was prepared by ring opening polymerization of epsilon-caprolactone catalyzed by Sn(Oct)(2) with hydroxyl terminated ladder-like poly(phenyl silsesquioxane) as initiator. The copolymers were characterized by proton nuclear magnetic resonance (H-1-NMR), silicon nuclear magnetic resonance (Si-29-NMR), Fourier-transform infrared spectrometer (FT-IR), size exclusion chromatography (SEC), thermo gravimetric analysis (TGA), and differential scanning calorimetry (DSC) in detail. Furthermore, the enzymatic degradation property of the copolymers was also investigated. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42335.