| 초록 |
A nitrophenylene polymer via ring-opening metathesis polymerization (ROMP) for the photo-mediated degradation has been developed. General degradable polymers contain hydrolysable functionalities such as esters, acetals, and vinyl ethers in their backbones, and their degradation requires an additional chemical step in presence of acid or base catalyst. Newly designed macrocyclic monomers bearing ortho-nitrobenzyl groups were successfully polymerized with Grubbs catalysts, and the resulting polymers were cleaved in presence of UV light without any chemical additive. Further studies are focused on the reversible polymerization and depolymerization of macrocyclic monomers in the manner of entropically-driven ROMP. |
