Allmendinger Markus, Eberhardt Robert, Luinstra Gerrit, Rieger Bernhard
Department of Materials and Catalysis, University of Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany.
J Am Chem Soc. 2002 May 22;124(20):5646-7. doi: 10.1021/ja0256919.
The metal-catalyzed synthesis of polyolefins, polyketones, and polycarbonates is well-known in academia and is already successfully applied in industrial processes. Still missing, however, is the metal-catalyzed synthesis of aliphatic polyesters, as one of the most important biodegradeable polymer families. We report here on the cobalt-catalyzed alternating copolymerization of propylene oxide and carbon monoxide, affording atactic and isotactic polyhydroxybutyrates (PHB). The postulated mechanism is supported by online ATR-IR analytics.
金属催化合成聚烯烃、聚酮和聚碳酸酯在学术界广为人知，并且已成功应用于工业生产过程。然而，作为最重要的可生物降解聚合物家族之一，脂肪族聚酯的金属催化合成方法仍未出现。我们在此报告了钴催化的环氧丙烷与一氧化碳的交替共聚反应，得到了无规和等规聚羟基丁酸酯（PHB）。在线ATR-IR分析支持了所提出的机理。
