Synthesis of Polyurethane Raw Material Using CO<sub>2</sub> as a Resource

DOI Web Site 42 References
  • TAKEUCHI Katsuhiko
    National Institute of Advanced Industrial Science and Technology, Interdisciplinary Research Center for Catalytic Chemistry
  • MATSUMOTO Kazuhiro
    National Institute of Advanced Industrial Science and Technology, Interdisciplinary Research Center for Catalytic Chemistry
  • FUKAYA Norihisa
    National Institute of Advanced Industrial Science and Technology, Interdisciplinary Research Center for Catalytic Chemistry
  • SATO Kazuhiko
    National Institute of Advanced Industrial Science and Technology, Interdisciplinary Research Center for Catalytic Chemistry
  • CHOI Jun-Chul
    National Institute of Advanced Industrial Science and Technology, Interdisciplinary Research Center for Catalytic Chemistry

Bibliographic Information

Other Title
  • CO<sub>2</sub>を資源として利用したポリウレタン原料合成技術

Description

<p>Production of useful chemicals using CO2 as a resource is attracting attention as a technology to reduce CO2 emissions and contribute to the prevention of global warming. Isocyanates, the raw material for polyurethanes that are mass-produced and used for long periods of time, are one of the ideal core chemicals as a target for this technology. Therefore, organic carbamates, which give isocyanates through pyrolysis, are focused attention as an intermediate compound for the synthesis of isocyanates from CO2. In this paper, we introduce the efficient and environmentally benign synthesis methods for organic carbamates from CO2 using regenerable metal alkoxides, such as dialkyltin dialkoxides R2Sn(OR’)2, titanium tetraalkoxides Ti(OR’)4, and tetraalkyl orthosilicates Si(OR’)4, which we have previously reported. By using these regenerable reagents, we have achieved the synthesis of a polyurethane raw material that consumes practically only amines and CO2, with H2O as the only byproduct. In particular, the reaction using Si(OMe)4 has succeeded in highly efficient synthesis of precursors of the industrially important polyurethane raw materials (MDI, TDI, and HDI) using 1 atm of CO2.</p>

Journal

  • Oleoscience

    Oleoscience 22 (10), 487-494, 2022

    Japan Oil Chemists' Society

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