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Issue 5, 2003
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Promoter effects in the polymerisation of a mixed hydrocarbon feed with silica-supported BF3

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Abstract

The activity of a silica-supported BF3methanol solid acid catalyst in the cationic polymerisation of an industrial aromatic C9 feedstock has been investigated. Reuse has been achieved under continuous conditions. Titration of the catalyst acid sites with triethylphosphine oxide (TEPO) in conjunction with 31P MAS NMR shows the catalyst to have two types of acid sites. Further analysis with 2,6 di-tert-butyl-4-methylpyridine (DBMP) has revealed the majority of these acid sites to be Brønsted in nature. The role of α-methylstyrene in promoting resin polymerisation via chain transfer is proposed.

Graphical abstract: Promoter effects in the polymerisation of a mixed hydrocarbon feed with silica-supported BF3

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Article information


Submitted
13 May 2003
First published
22 Sep 2003

Green Chem., 2003,5, 602-605
Article type
Paper

Promoter effects in the polymerisation of a mixed hydrocarbon feed with silica-supported BF3

C. R. Quinn, J. H. Clark, S. J. Tavener and K. Wilson, Green Chem., 2003, 5, 602
DOI: 10.1039/B305400B

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