Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium/Al（i-Bu）3 System
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2018年第2期
论文作者：程正载 TANG Ran 谢聪 WANG Yun DING Ling WANG Handing YAN Xiaochao ZHU Sanyong Gauthier Mario
文章页码：492 - 499
摘 要：A new kind of zirconium（Zr） complex containing ligand of salicylaldehyde-imine was successfully synthesized with ZrCl4·2 THF and salicylaldehyde-imine as raw materials. The ligand was characterized by means of 1HNMR, IR, and GC-MS, and Zr complex was characterized by means of 1HNMR and IR, respectively. The Zr complex, combined with co-catalyst of Al（i-Bu）3, was explored to be effective catalytic system for the polymerization of butyl methacrylate（BMA）, to prepare poly-n-butyl methacrylate（PBMA）, which was characterized by IR, 13C-NMR and GPC. Compared with other double-component（MAO/Cat, AlEt3/Cat） catalytic systems, catalytic system of Al（i-Bu）3 and the Zr complex provided the best catalytic activity under the same conditions. The influence of polymerization parameters, such as molar ratio of Al（i-Bu）3/Cat and BMA/Cat, polymerization temperature and polymerization time, was studied with Zr complex/Al（i-Bu）3 system. With increasing polymerization time from 4 to 24 hour, the monomer conversion increased from 40.14% to 96.56%. Viscosity-average molecular weight（Mv） of PBMA, detected by the viscosity methodology, increased from 12.67×104Da to 44.97×104Da and lower molecular weight distribution was obtained. According to these results, the Zr complex contained ligand of salicylaldehyde-imine was a kind of readily, long lifetime and high activity catalyst for BMA polymerization.
程正载1,2,3，TANG Ran1，谢聪1,4，WANG Yun1，DING Ling1，WANG Handing1，YAN Xiaochao1,2，ZHU Sanyong3，Gauthier Mario1
1. School of Chemisty and Chemical Engineering,Wuhan University of Science and Technology2. Hubei Province Key Laboratory of Coal Conversion And Novel Carbon Materials3. Chemistry Department,University of Florida4. Hubei Collaboration Innovative Center for Non-Power Nuclear Technology,Hubei University of Science and Technology
摘 要：A new kind of zirconium（Zr） complex containing ligand of salicylaldehyde-imine was successfully synthesized with ZrCl4·2 THF and salicylaldehyde-imine as raw materials. The ligand was characterized by means of 1HNMR, IR, and GC-MS, and Zr complex was characterized by means of 1HNMR and IR, respectively. The Zr complex, combined with co-catalyst of Al（i-Bu）3, was explored to be effective catalytic system for the polymerization of butyl methacrylate（BMA）, to prepare poly-n-butyl methacrylate（PBMA）, which was characterized by IR, 13C-NMR and GPC. Compared with other double-component（MAO/Cat, AlEt3/Cat） catalytic systems, catalytic system of Al（i-Bu）3 and the Zr complex provided the best catalytic activity under the same conditions. The influence of polymerization parameters, such as molar ratio of Al（i-Bu）3/Cat and BMA/Cat, polymerization temperature and polymerization time, was studied with Zr complex/Al（i-Bu）3 system. With increasing polymerization time from 4 to 24 hour, the monomer conversion increased from 40.14% to 96.56%. Viscosity-average molecular weight（Mv） of PBMA, detected by the viscosity methodology, increased from 12.67×104Da to 44.97×104Da and lower molecular weight distribution was obtained. According to these results, the Zr complex contained ligand of salicylaldehyde-imine was a kind of readily, long lifetime and high activity catalyst for BMA polymerization.
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