Copolymerization of Ethylene with Functionalized Olefins by [ONX] Titanium Complexes

A series of titanium complexes bearing [ONX] tridentate ligands have been synthesized and characterized. The complexes containing sulfur or phosphine donors showed high activity in the copolymerization of ethylene with 9-decen-1-ol (up to 1.3 × 108 g polymer (mol Ti)−1 h–1) with an incorporation ratio of up to 8.8 mol %. Moreover, they have also shown excellent capability for copolymerization of ethylene with AlBui3 (or tert-butylchlorodimethylsilane) pretreated 4-penten-1-ol, ω-alkenoic acid, and ω-alkenoic ester, as well as unprotected tertiary amine.本研究合成并表征了一系列负载[ONX]型三齿配体的钛金属配合物。其中含硫供体或膦供体配位点的配合物，在乙烯与9-癸烯-1-醇的共聚反应中展现出极高催化活性，最高可达1.3×10^8 g·(mol Ti)^-1·h^-1，共聚单体插入率最高达8.8 mol%。此外，该类配合物还具备优异的共聚催化性能，可催化乙烯与经三异丁基铝（AlBui3）或叔丁基氯二甲基硅烷预处理的4-戊烯-1-醇、ω-链烯酸、ω-链烯酸酯以及未保护叔胺进行共聚反应。