钒配合物的合成及其催化丁二烯聚合  

Synthesis of vanadium complexes and butadiene polymerization catalyzed by the complexes

作　　者：黄贵秋[1] 陈敏娥[1] 熊拯[1] 

机构地区：[1]钦州学院化学化工学院,广西省钦州市535000

出　　处：《合成树脂及塑料》2012年第4期34-37,共4页China Synthetic Resin and Plastics

基　　金：广西教育厅科研项目(200911LX435);广西教育厅科研项目(201010LX445)

摘　　要：采用N-亚硝基苯胲铵、二乙基二硫代氨基甲酸钠合三水和8-羟基喹啉三种萃取剂,萃取合成了三个双配位基配体钒配合物,将其用于催化丁二烯聚合获得聚丁二烯产品。用元素分析及红外光谱分析测定了钒配合物的结构,用凝胶渗透色谱、红外光谱及核磁共振波谱分析了聚合产物结构。所得聚丁二烯的数均分子量为（0.96~1.36）×104,相对分子质量分布为3.5~4.3,1,2-结构单元的摩尔分数高于60%,且构型为间同立构和无规结构。Three vanadium complexes were synthesized via extraction with cupferron,sodium diethyl dithiocarbamate and 8-hydroxyquinoline as extraction reagents.The resultant vanadium complex with bifunctional ligand was successfully applied in catalyzing butadiene polymerization through which the corresponding polymer was acquired.The structure of the vanadium complexes was tested by elemental analyses and infrared spectroscopy（IR）.The structure of the resultant polybutadiene was analysized with gel permeation chromatography（GPC）,IR,nuclear magnetic resonance spectroscopy（1H-NMR and 13C-NMR）.The polybutadiene possessed number average molecular mass of（0.96-1.36）×104 and relative molecular mass distribution of 3.5-4.3.The molar content of 1,2-configuration unit,in either syndiotactic or atactic microstructure,was higher than 60% of the polybutadiene.

关 键 词：钒配合物 丁二烯聚合 1 2聚丁二烯 

分 类 号：TQ316.314[化学工程—高聚物工业]