Mild Catalytic Degradation of Crystalline Polyethylene Units in a Solid State Assisted by Carboxylic Acid Groups
作者：Lu, B.; Takahashi, K.; Zhou, J.; Nakagawa, S.; Yamamoto, Y.; Katashima, T.; Yoshie, N.; Nozaki, K.*
关键字：Catalytic Degradation, Polyethylene, Carboxylic Acid Groups
论文来源：期刊
具体来源：J. Am. Chem. Soc.
发表时间：2024年
Crystalline polyethylenes bearing carboxylic acid groups in the main chain were successfully degraded with a Ce catalyst and visible light. The reaction proceeds in a crystalline solid state without swelling in acetonitrile or water at a reaction temperature as low as 60 or 80 °C, employing dioxygen in air as the only stoichiometric reactant with nearly quantitative recovery of carbon atoms. Heterogeneous features of the reaction allowed us to reveal a dynamic morphological change of polymer crystals during the degradation.