| 초록 |
Copolymerization of DL-lactide (LA) and ε-caprolactone (CL) has becoming a topic of interest because of the possible formation of copolymers with superior biocompatibility and biodegradability. Thus, synthesizing copolymers with random distributions of LA and CL throughout the polymer chains is an interesting yet challenging task. Herein, a series of poly(LA-co-CL) and poly(LA-r-CL) were prepared via one-pot, solvent-free copolymerization of LA and CL. The reaction was performed in the presence of anhydrous ethylene glycol as an initiator and heterogeneous double metal cyanide catalyst. The resultant copolymers were characterized using infrared and nuclear magnetic resonance spectroscopies, gel permeation chromatography, differential scanning calorimetry and thermogravimetric analysis measurements. |
