| 초록 |
Ring-opening polymerization (ROP) of cyclic ester monomers such as lactones and lactides is the major route in the preparation of well-defined biopolymers with environment-friendly, biocompatible, biodegradable, and renewable thermoplastic properties. ROP in a bulk process enables short reaction times, high molecular weights, and structural control through the use of various catalysts and comonomers while has some drawbacks such as limited diffusion of monomer in highly viscous melt, thermal degradation, depolymerization, trans-esterification, and racemization. Studies on the polymerization kinetics in the context is required to reveal the existence of these species and the reaction profile. In the presentation, kinetic studies of L-lactide polymerization with organometallic catalysts at high temperatures will be discussed together with kinetic modeling based on experimental data. |
