应用化学2012，Vol.29Issue(12)：1394-1398,5.DOI:10.3724/SP.J.1095.2012.20431
亚胺膦亚胺型稀土双烷基配合物对丁二烯1,2-选择性聚合
Highly 1,2-Selective Polymerization of 1,3-Butadiene with Rare-earth Metal Bis(alkyl)s Bearing an Iminophosphonamide Ligand
刘博 1李世辉 2李丹凤 2吕奎 2崔冬梅 2孙广平2
作者信息
- 1. 吉林大学材料科学与工程学院,教育部汽车材料重点实验室 长春130025
- 2. 中国科学院长春应用化学研究所高分子物理和化学重点实验室 长春130022
- 折叠
摘要
Abstract
Treatment of scandium tris (alkyl) s,Sc (CH2 SiMe3) 3 (THF) 2,with 2-Me-C6H4 NHPPh2=NC6 H2-2,4,6-Me3 (NPNArH) via deprotonation affords the bis(alkyl) derivative [NPNAr] Sc (CH2 SiMe3)2 (THF).The complex structure was characterized by means of 1H NMR,13C NMR,elemental analysis and X-ray diffraction analysis.Complex activated with [Ph3 C] [B (C6 F5)4] and AliBu3 exhibited highly catalytic activity to the polymerization of butadiene.The 1,2-selectivity of polybutadiene noticeably increased with decrease of temperature.The molecular mass is 2.95 × 104 and the molecular mass distribution(Mw/Mn) is 1.65 at-75 ℃.关键词
丁二烯/选择性/催化活性Key words
butadiene/selectivity/catalytic activity分类
化学化工引用本文复制引用
刘博,李世辉,李丹凤,吕奎,崔冬梅,孙广平..亚胺膦亚胺型稀土双烷基配合物对丁二烯1,2-选择性聚合[J].应用化学,2012,29(12):1394-1398,5.
