应用化学2017，Vol.34Issue(11)：1259-1264,6.DOI:10.11944/j.issn.1000-0518.2017.11.170236
吡啶/喹啉单亚胺镍(Ⅱ)配合物的合成及液体聚丁二烯的制备
Pyridyl/Quinolyl-imine Ni(Ⅱ)Complexes:Synthesis and Application for Preparation of Liquid Polybutadiene
摘要
Abstract
The introduction of side arm soft donors (S or P ) is an efficient method to improve catalytic performance of the complexes. A series of NNP-tridentate nickel (Ⅱ)complexes bearing pyridyl/quinolyl-imine ligands(2a~2d)was synthesized and characterized by Fourier transform infrared spectroscopy(FTIR) and elemental analysis. X-ray diffraction analysis (XRD)reveals that complexes 2a and 2d adopt square-pyramidal and trigonal bipyramid geometries, respectively. Activated by ethylaluminum sesquichloride (EASC),all complexes are highly active for butadiene polymerization to afford liquid polybutadienes having number-average relative molecular masses of 4200 ~7700 and medium cis-1 ,4 mole fraction (74. 5% ~79. 9%). The ligand has little influence on the catalytic behaviors. The catalytic activity increases with the increment of polymerization temperature,and the catalytic system still exhibits high activity even at 90 ℃, indicating high thermal stability of the generated active species.关键词
亚胺结构/NNP配体/镍配合物/液体聚丁二烯Key words
imine structure/NNP-tridentate ligand/nickel complex/liquid polybutadiene分类
化学化工引用本文复制引用
庄锐,董博,赵文朋,胡雁鸣,张学全..吡啶/喹啉单亚胺镍(Ⅱ)配合物的合成及液体聚丁二烯的制备[J].应用化学,2017,34(11):1259-1264,6.基金项目
国家重点基础研究发展计划(2015CB654700,(2015CB674702)资助 （2015CB654700,(2015CB674702）
Supported by the National Basic Research Program of China(No. 2015CB654700,No. 2015CB674702) （No. 2015CB654700,No. 2015CB674702）
