The catalyst mechanism of A101 to TDI-TMP system is that metal ions, TDI and alcohol form a ernary complex compound, so the reactions become easy.

• 经分析A101金属化合物对TDI-TMP体系的催化机理,在反应中是A101中金属离子与TDI-醇形成一个三元活化络合物,因而反应易于进行。