[2D07-2D08] Polymer/Oligomer(2)

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)English

[2D07] Direct synthesis of polycarbonate diols with high molecular weights from atmospheric flow CO₂ and diols

○Hanghao Lin¹, Pengru Chen¹, Yusuke Kita¹, Masazumi Tamura¹ (1. Osaka Metropolitan University, Graduate School of Engineering)

Keywords:

Diol,CeO2,solvent

We found that the combination of cerium oxide (CeO₂) catalyst and CO₂ flow reaction system is effective for the direct and catalytic synthesis of polycarbonate diols from CO₂. However, it is challenging to synthesize polycarbonate diols with high molecular weight (>4,000 g mol^-1). In this study, we investigated the effect of solvent types and amounts in the synthesis of the polycarbonate diol from CO₂ and 1,6-hexanediol with CeO₂ catalyst and CO₂ flow system. A mixture of 1 g of triglyme and 1 g of diphenyl ether is the suitable solvent for the reaction, and the polycarbonate diol with a high molecular weight of around 10000 g mol^-1 could be synthesized.