Synthesis of low molecular weight polyethylene waxes by a titanium BINOLate–ETHYLALUMINUM SESQUICHLORIDE (cas 12075-68-2) catalyst system

Add time:07/29/2019    Source:sciencedirect.com

Homogeneous complexes of Ti (IV) bearing sterically hindered bidentate diols such as 1,1′-binaphthalene 2,2′ diol (Binol) and substituted Binol were prepared and characterized. These catalyst precursors formulated as [Ti(O∧O)2] or [Ti(O∧O)X2] are found to be active in polymerization of ethylene at high temperatures in combination with alkyl aluminum sesquichloride (Et3Al2Cl3) as co-catalyst. The polyethylenes obtained are linear, crystalline and display narrow polydispersities. The unique low molecular weight PE waxes formed in this reaction exhibit properties that have potential applications in surface coating and ink formulations. The influence of various reaction conditions on polymerization is discussed.

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