Pyridine amine hafnium compound as well as preparation method and application thereof

• Main Authors: CHEN XU, WANG SHENMING, XU RENWEI, MU RUIJUAN, ZHONG LIU, LIU YUN, HAN XIAOYU, MA YANPING, WANG LINGZHI, GAO HAIYANG, LI GUANGQUAN, FAN JIE, GONG GUANGBI, WANG XIONG, YANG SHIYUAN, GUO YI
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2021
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses a pyridine amine hafnium compound, a preparation method thereof and application thereof in olefin polymerization reaction. The structural formula of the pyridine amine hafnium compound is shown as a formula I, R represents hydrogen and methyl, and X represents methyl, methoxyl, fluorine, chlorine and bromine elements. The pyridine amine hafnium compound can be used as a main catalyst to catalyze olefin polymerization, not only has high activity and strong orientation ability, but also shows very strong copolymerization ability and living polymerization performance, and can catalyze ethylene and alpha-olefin to obtain a high-performance polyolefin material. 本发明公开了一种吡啶胺基铪化合物及其制备方法和在烯烃聚合反应中的应用。所述吡啶胺基铪化合物结构式如式I所示：其中，R表示氢、甲基，X表示甲基、甲氧基、氟、氯、溴元素。该吡啶胺基铪化合物能够作为主催化剂催化烯烃聚合，不仅活性高、定向能力强，而且显示出非常强的共聚能力和活性聚合性能，催化乙烯和α-烯烃能够得到高性能的聚烯烃材料。