The choice of the anion has a surprisingly strong effect on the incorporation of CO2 into the polymer obtained during the zinc-catalysed copolymerisation of CO2 and cyclohexene oxide. The product span ranges from polyethercarbonates, where short polyether sequences alternate with carbonate linkages, to polycarbonates with a strictly alternating sequence of the repeating units. Herein, we report on the influence of the coordination ability of the anion on the selectivity and kinetics of the copolymerisation reaction.
阴离子的选择对在锌催化的CO₂和环己氧化物共聚反应中获得的聚合物中CO₂的掺入具有令人惊讶的强烈影响。 产品范围从聚醚碳酸酯,其中短聚醚序列与碳酸酯键交替,到具有重复单元严格交替序列的聚碳酸酯。 在这里,我们报告了阴离子的配位能力对共聚反应的选择性和动力学的影响。