A family of 16 salicylaldarylimine titanium(IV) dichloride complexes bearing diallylamino group, namely {2‐[3‐ or 4‐(CH₂CHCH₂)₂NC₆H₄NCH]‐6‐R¹‐4‐R²‐C₆H₂O}₂TiCl₂ (R¹ = t‐Bu, CMe₂(Ph); R² = H, Me, OMe, t‐Bu) have been used for polymerization of ethylene in the presence of methylaluminoxane. The effects of reaction conditions on the polymerization were examined in detail. All the pre‐catalyst are highly active (up to 14.0 × 10⁶ g_(PE) mol_(Ti)^{−1 −1} h⁻¹) for ethylene polymerization at 30°С to 60°С with the activities and MM correlating with the R¹‐substituent type and position of NAll₂‐group: CMe₂(Ph) > t‐Bu and meta‐NAll₂ > para‐NAll₂ for any R². Highly linear polyethylenes (T_m's as high as 141.0°С) can be obtained with high molecular weights in the range 0.70 to 4.10 × 10⁶ g mol⁻¹ with disentangled morphology, suitable for technologically more advanced and greeny way to produce high‐modulus high‐strength fibers of ultrahigh molecular weight polyethylene via solid‐state (solvent‐free) deformation processing.

中文翻译：

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带有二烯丙基氨基的高活性二氯化钛IV催化剂，用于分解UHMWPE

的16 salicylaldarylimine钛（IV）二氯化物络合物家族轴承二烯丙基基团，即{2- [3-或4-（CH ₂ CH  CH ₂）₂ NC ₆ H ^ ₄ NCH] -6--R ¹ -4 -R ² -C ₆ H ₂ O} ₂ TiCl ₂（R ¹ = t- Bu，CMe ₂（Ph）; R ² = H，Me，OMe，t‐Bu）已用于在甲基铝氧烷存在下进行乙烯聚合。详细研究了反应条件对聚合的影响。所有预催化剂对于30°C至60°С的乙烯聚合反应都具有很高的活性（高达14.0×10 ⁶  g _（PE） mol _（Ti）^{-1 -1} h ^-1），其活性和MM与[R ¹ NALL的-取代类型和位置₂ -基团：CME ₂（PH）> 吨-Bu和元-NAll ₂  > 第-NAll ₂对于任何r ²。高度线性聚乙烯可以在0.70至4.10×10 ⁶  g mol ^-1的高分子量范围内获得高分子量（T _m 's为141.0°С），并且具有纠缠的形态，适用于技术更先进和绿色的方法来生产高模量高强度材料。固态（无溶剂）变形工艺处理的超高分子量聚乙烯高强度纤维。