Reaction Kinetics, Mechanisms and Catalysis

, Volume 99, Issue 2, pp 463–470

β-Pinene cationic polymerization using Keggin heteropolyacid catalysts

Authors

  • Hualong Zhu
    • College of Chemistry and Ecological EngineeringGuangxi University for Nationalities
    • College of Chemistry and Ecological EngineeringGuangxi University for Nationalities
    • College of Chemical EngineeringNanjing Forestry University
  • Taishun Zhang
    • College of Chemistry and Ecological EngineeringGuangxi University for Nationalities
  • Wei Zeng
    • College of Chemistry and Ecological EngineeringGuangxi University for Nationalities
  • Xinnan An
    • College of Chemical EngineeringNanjing Forestry University
  • Fuhou Lei
    • College of Chemistry and Ecological EngineeringGuangxi University for Nationalities
Article

DOI: 10.1007/s11144-009-0144-8

Cite this article as:
Zhu, H., Liu, Z., Zhang, T. et al. Reac Kinet Mech Cat (2010) 99: 463. doi:10.1007/s11144-009-0144-8

Abstract

New and efficient Keggin heteropolyacid (HPA) catalysts were explored for β-pinene (PI) cationic polymerization. Among them, 12-phosphotungstic acid (PW12) dehydrated at 200 °C exhibited high catalytic activity. The overall PI conversion was up to 96.53%, and the obtained polymer product yield was 60.85%. In order to study this new catalyzed reaction, special techniques of FT-IR, 1H-NMR, XRD, and XPS were used in this paper, and it was shown that the crystal structure of the heteropoly anion was not destroyed during the reaction. The protons dissociating from the catalyst played an important role in the polymerization and the HPAs had two important functions: polymerization initiator, and the counter-anion of the growing cation center.

Keywords

β-Pinene Heteropolyacid Cationic polymerization

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010