A new mild and efficient tin and titanium based catalyst combination have been explored for the synthesis of high molecular weight poly(butylene succinate). The new catalyst system is found to be more efficient and hydrolytically—as well as thermally—stable even at 250°C. Additionally, this new catalyst system is capable of producing very high molecular weight poly(butylene succinate) polymer in good yield even at lower temperatures.

中文翻译：

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Ti(OBu)4 与 Sn(Oct)2 的结合：一种用于高分子量聚（丁二酸丁二醇酯）合成的高效催化剂体系

已经探索了一种新的温和高效的锡和钛基催化剂组合，用于合成高分子量聚（丁二酸丁二醇酯）。发现新的催化剂系统即使在 250°C 下也更有效、水解和热稳定。此外，这种新的催化剂体系即使在较低温度下也能以良好的产率生产非常高分子量的聚（丁二酸丁二醇酯）聚合物。