Synthesis of Substituted Phosphotungstic Acids and their Catalytic Performance on Cationic Polymerization of β-Pinene

Abstract:

Substituted phosphotungstic acids containing manganese, chromium, molybdenum and vanadium were prepared, and their catalytic performance on cationic polymerization of β-pinene was also investigated. The experimental results show that the substituted phosphotungstic acids are mono-substituted and keep Keggin structure. The substituted phosphotungstic acids containing Mn or Cr exhibit similar catalytic performance as phosphotungstic acid, instead show bad properties if containing Mo or V. The yield of polymer is up to 44.3 %, and the average number molecular weight is about 1200, and molecular weight distribution index is 1.4.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 616-619
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.616
• Online since: January 2013
• Authors: Zu Guang Liu, Hua Long Zhu, Shuo Wang, Le Le Zhao, Fu Hou Lei
• Keywords: Cationic Polymerization, Substituted Phosphotungstic Acids, Β-Pinene

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