Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D-20146 Hamburg Germany.
ChemistryOpen. 2020 Aug 11;9(8):818-821. doi: 10.1002/open.202000161. eCollection 2020 Aug.
Chemical recycling processes can contribute to a resource-efficient plastic economy. Herein, a procedure for the iron-catalyzed hydrogenation of the carbonate function of end-of-life polycarbonates under simultaneous depolymerization is presented. The use of a straightforward iron pincer complex leads to high rate of depolymerization of poly(bisphenol A carbonate) and poly(propylene carbonate) yielding the monomers bisphenol A and 1,2-propanediol, respectively, as products under mild reaction conditions. Furthermore, the iron complex was able to depolymerize polycarbonates containing goods and mixture of plastics containing polycarbonates.
化学回收工艺有助于实现资源高效的塑料经济。在此，提出了一种在同时解聚的情况下，用铁催化剂催化废旧聚碳酸酯的碳酸盐官能团加氢的方法。使用简单的铁钳形配合物，可以在温和的反应条件下，高转化率地解聚双酚 A 聚碳酸酯和聚碳酸亚丙酯，分别得到双酚 A 和 1,2-丙二醇单体。此外，该铁配合物还能够解聚含有商品的聚碳酸酯和含有聚碳酸酯的塑料混合物。
