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

C R  Quinn; J H  Clark; S J  Tavener; Karen 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, Karen Wilson

Chemistry

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 P-31 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 Bronsted in nature. The role of a-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
DOIs	https://doi.org/10.1039/b305400b
Publication status	Published - 2003

Keywords

CATIONIC-POLYMERIZATION

Access to Document

10.1039/b305400b

Cite this

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title = "Promoter effects in the polymerisation of a mixed hydrocarbon feed with silica-supported BF3",

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 P-31 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 Bronsted in nature. The role of a-methylstyrene in promoting resin polymerisation via chain transfer is proposed.",

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AU - Quinn, C R

AU - Clark, J H

AU - Tavener, S J

AU - Wilson, Karen

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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 P-31 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 Bronsted in nature. The role of a-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 P-31 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 Bronsted in nature. The role of a-methylstyrene in promoting resin polymerisation via chain transfer is proposed.

KW - CATIONIC-POLYMERIZATION

U2 - 10.1039/b305400b

DO - 10.1039/b305400b

M3 - Article

SN - 1463-9270

VL - 5

SP - 602

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JO - Green Chemistry

JF - Green Chemistry

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ER -