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Brief review of the chemistry of polyphosphoric acid (PPA) and bitumen

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1021/ef800120x
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FormatText, Article
Subjectbitumen, asphalt, modification, reaction, polyphosphoric acid, review; Roads/Pavement
Abstract
Bitumen finds great use in paving and roofing applications. To enhance or extend its performance, it is often modified with a polymer, including polyphosphoric acid (PPA). PPA is a reactive oligomer, a short chain polymer, whose reaction with bitumen is poorly understood. In an effort to better understand their reaction, the chemical characteristics of PPA and bitumen are reviewed. It is concluded that PPA cannot dissociate and react with bitumen unless enclaves of high dielectric constant exist in bitumen.
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  • Energy & Fuels 22, no. June 4 (1 June 2008): 2637–2640.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 47711
NRC-IRC-19351
NPARC number20377099
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Record identifier3b713eef-a0b9-4000-a2df-50a26cc588a8
Record created2012-07-24
Record modified2020-04-15
Date modified: