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

C.R. Quinn, J.H. Clark, S.J. Tavener, K. Wilson

Research output: Contribution to journalArticle

Abstract

The activity of a silica-supported BF3–methanol 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.
Original languageEnglish
Pages (from-to)602-605
Number of pages4
JournalGreen Chemistry
Volume5
Issue number5
Early online date22 Sep 2003
DOIs
Publication statusPublished - Oct 2003

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