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

doi:10.1039/b305400b

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 journal › Article › peer-review

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 language	English
Pages (from-to)	602-605
Number of pages	4
Journal	Green Chemistry
Volume	5
Issue number	5
Early online date	22 Sept 2003
DOIs	https://doi.org/10.1039/b305400b
Publication status	Published - Oct 2003

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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 Br{\o}nsted in nature. The role of α-methylstyrene in promoting resin polymerisation via chain transfer is proposed.",

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AU - Tavener, S.J.

AU - Wilson, K.

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N2 - 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.

AB - 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.

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JO - Green Chemistry

JF - Green Chemistry

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ER -

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

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