| 초록 |
Renewable thermoset elastomers were prepared using the plant-based monomer carvomenthide (CM). Controlled ring-opening transesterification polymerization (ROTEP) of CM using diethylene glycol (DEG) as an initiator with Sn(Oct)2 as a catalyst gave poly(carvomenthide) (HO-PCM-OH), which was subsequently converted to PCM (HOOC-PCM-COOH) by esterification with succinic anhydride through a one-pot, two-step process, leading to no crystallinity, high viscosity, strong thermal resistance, and low glass transition temperature of the resulting functionalized polyester. Thermal curing of the resulting were achieved with trifunctional aziridine to give cross-linked PCM elastomers. The thermal properties, mechanical behavior, and biocompatibility of the products were investigated by DSC, TGA, DMA, tensile tests under static and cyclic loads, and cell adherence. These new materials are useful candidates to satisfy the design objective for the engineering of a variety of soft tissues. |
