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合成了三种PNP配体,并与Ti(Ⅳ)作用形成催化剂,利用核磁共振氢谱、元素分析及质谱对配体及催化剂进行了结构表征。在助催化剂甲基铝氧烷(MAO)存在的条件下,催化乙烯齐聚。试验结果表明:钛(Ⅳ)剂催化活性最高可达2.58×105g/(molTi.h),α-烯烃选择性达80.72%。
Three PNP ligands were synthesized and reacted with Ti (Ⅳ) to form a catalyst. The ligands and catalysts were characterized by 1H-NMR, elemental analysis and mass spectrometry. Ethylene was catalyzed in the presence of cocatalyst methylaluminoxane (MAO). The experimental results show that the catalytic activity of titanium (Ⅳ) is up to 2.58 × 105g / (molTi.h) and the selectivity of α-olefin is up to 80.72%.