Symmetric and Asymmetric Binuclear α-Diimine Nickel(II) Complexes for Ethylene Polymerization
(ندگان)پدیدآور
Xiao, AnguoPan, LiuShibao, ZhouFeiFei, Wangنوع مدرک
TextResearch Article
زبان مدرک
Englishچکیده
A series of symmetric and asymmetric binuclear α-diimine nickel(II) complexes toward ethylene polymerization were successfully synthesized and characterized by 1HNMR. All the catalysts were typically activated with MAO and displayed good activity at room temperature under 1atm ethylene pressure. The symmetric catalyst containing isopropyl on ligand-activated with 500 equiv MAO produced high molecular weight polyethylene with a PDI=1.75, while the symmetric catalyst containing methyl on ligand produced relatively low molecular weight polyethylene with a PDI=1.74. By contrast, the molecular weight, branching density of resultant polymer produced by asymmetric catalyst decrease roughly somewhere between that of polymers prepared by two symmetric catalysts.
کلید واژگان
α-Diimine Nickel Complexesethylene polymerization
Symmetric Catalyst
Asymmetric Catalyst
Catalysts, Kinetics, Reactor
Polymers & Composites
شماره نشریه
3تاریخ نشر
2019-06-011398-03-11
ناشر
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRسازمان پدید آورنده
Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, 415000, P.R. CHINAHunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, 415000, P.R. CHINA
Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, 415000, P.R. CHINA
Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde, 415000, P.R. CHINA