A high-activity catalyst system for polyester consisted of Sb2 ( EG ) 3 and at least one kind of metal acetate catalyst of manganese , zinc , cobalt or lead .
选择乙二醇锑以及至少一种锰、锌、钴、铅等金属醋酸盐共同组成高效聚酯催化剂体系，研究其对缩聚反应的催化作用。
sb2