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Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium /Al(i-Bu)3 System

  • Organic Materials
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Abstract

A new kind of zirconium(Zr) complex containing ligand of salicylaldehyde-imine was successfully synthesized with ZrCl4·2THF 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 12.67×104 Da to 44.97×104 Da 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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Authors and Affiliations

  1. School of Chemisty and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China

    Zhengzai Cheng  (程正载), Ran Tang, Cong Xie  (谢聪), Yun Wang, Ling Ding, Handing Wang, Xiaochao Yan & Mario Gauthier

  2. Hubei Collaboration Innovative Center for Non-Power Nuclear Technology, Hubei University of Science and Technology, Xianning, 437100, China

    Cong Xie  (谢聪)

  3. Hubei Province Key Laboratory of Coal Conversion And Novel Carbon Materials, Wuhan, 430081, China

    Zhengzai Cheng  (程正载) & Xiaochao Yan

  4. Chemistry Department, University of Florida, FL, GNV, 32611, USA

    Zhengzai Cheng  (程正载) & Sanyong Zhu

Authors
  1. Zhengzai Cheng  (程正载)
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  2. Ran Tang
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  3. Cong Xie  (谢聪)
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  4. Yun Wang
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  5. Ling Ding
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  6. Handing Wang
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  7. Xiaochao Yan
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  8. Sanyong Zhu
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  9. Mario Gauthier
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Corresponding author

Correspondence to Cong Xie  (谢聪).

Additional information

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), and the Open Foundation of Hubei Province Key Laboratory of Coal Conversion and Novel Materials (WKDM201509)

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Cheng, Z., Tang, R., Xie, C. et al. Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium /Al(i-Bu)3 System. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 33, 492–499 (2018). https://doi.org/10.1007/s11595-018-1850-7

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  • DOI: https://doi.org/10.1007/s11595-018-1850-7

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