Keggin heteropolyacids as catalyst for the polymerization of β-pinene

A series of Keggin-type heteropolyacids (HPAs) have been explored for cationic polymerization of β-pinene in an attempt to substitute traditional polymerization catalyst Lewis acids. The catalysts were characterized by XRD, FT-IR, TGA, acid strengths of the catalysts were measured with Hammett indic...

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Veröffentlicht in:	Reaction Kinetics, Mechanisms and Catalysis Mechanisms and Catalysis, 2010-08, Vol.100 (2), p.355-361
Hauptverfasser:	Zhu, Hualong, Liu, Zuguang, An, Xinnan, Lei, Fuhou
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Chemistry Chemistry and Materials Science Industrial Chemistry/Chemical Engineering Physical Chemistry
Online-Zugang:	Volltext
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Zusammenfassung:	A series of Keggin-type heteropolyacids (HPAs) have been explored for cationic polymerization of β-pinene in an attempt to substitute traditional polymerization catalyst Lewis acids. The catalysts were characterized by XRD, FT-IR, TGA, acid strengths of the catalysts were measured with Hammett indicators. Among them, 12-phosphotungstic acid (PW 12 ) exhibits much higher catalytic activity. The effects of solvent, calcination temperature and reaction temperature on the catalytic performance were investigated.
ISSN:	1878-5190 1588-2837 1878-5204
DOI:	10.1007/s11144-010-0155-5