Highly linear polyethylenes using the 2-(1-(2,4-dibenzhydrylnaphthylimino)ethyl)-6-(1-(arylimino)ethyl)-pyridylcobalt chlorides: synthesis, characterization and ethylene polymerization
作者:Erlin Yue、Yanning Zeng、Wenjuan Zhang、Yang Sun、Xiao-Ping Cao、Wen-Hua Sun
DOI:10.1007/s11426-016-0157-0
日期:2016.10
The series of 2-(1-(2,4-dibenzhydrylnaphthylimino)ethyl)-6-(1-(arylimino)ethyl)pyridine derivatives and their cobalt chlorides (Co1−Co5) were synthesized and fully characterized. The representative complexes Co2 and Co3 were confirmed by single crystal X-ray diffraction analyses, indicating pseudo-square-pyramidal geometry around the cobalt centre. All cobalt complexes, activated with either methylaluminoxane
合成了2-(1-(2,4-二苯甲酰基萘并氨基)乙基)-6-(1-(芳基)乙基)吡啶衍生物及其氯化钴(Co1-Co5),并对其进行了充分表征。代表性的配合物Co2和Co3通过单晶X射线衍射分析得到证实,表明钴中心周围为伪正方形的金字塔形几何形状。所有被甲基铝氧烷(MAO)或改性甲基铝氧烷(MMAO)活化的钴配合物均表现出对乙烯聚合的高活性,并产生了具有高分子量和高线性特征以及单峰分布的聚乙烯。