Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium/Al(i-Bu)_3 System

作     者：程正载 TANG Ran 谢聪 WANG Yun DING Ling WANG Handing YAN Xiaochao ZHU Sanyong Gauthier Mario 

作者机构：School of Chemisty and Chemical EngineeringWuhan University of Science and Technology Hubei Province Key Laboratory of Coal Conversion And Novel Carbon Materials Chemistry DepartmentUniversity of Florida Hubei Collaboration Innovative Center for Non-Power Nuclear TechnologyHubei University of Science and Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2018年第33卷第2期

页      面：492-499页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：Funded by the Natural Science Foundation of Hubei Province(2017CFB680) the Excellent Youth Project of Hubei Provincial Department of Education(Q20162806) the National Undergraduate Science Foundation of China(No.201510488004) the Open Foundation of Hubei Province Key Laboratory of Coal Conversion and Novel Materials(WKDM201509) 

主　　题：salicylaldehyde imine zirconium catalyzed polymerization butyl methacrylate 

摘      要：A new kind of zirconium（Zr） complex containing ligand of salicylaldehyde-imine was successfully synthesized with ZrCl_4·2 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, AlEt_3/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（M_v） of PBMA, detected by the viscosity methodology, increased from 12.67×10~4Da to 44.97×10~4Da 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.