| Download | - View accepted manuscript: Rapid FTIR method for quantification of styrene-butadiene type copolymers in bitumen (PDF, 764 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1002/1097-4628(20010207)79:6<1034::AID-APP60>3.3.CO;2-W |
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| Author | Search for: Masson, J-F.; Search for: Pelletier, L.; Search for: Collins, P.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | bitumen, ftir, analysis, modified bitumen, sbs, sb, copolymer, spectroscopy; Roads/Pavement; Roads |
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| Abstract | The mid-infrared molar absorptivity for polystyrene (PS) and polybutadiene (PB) blocks were obtained for five SBS and SB copolymers, including linear, branched and star copolymers, and their blends with bitumen. The average absorptivity for PS and PB blocks was 277 and 69 L·mol-1·cm-1 and it was little affected by the S/B ratio or the copolymer architecture. In presence of bitumen, Beer's law was obeyed but the respective PS and PB absorptivity was 242 and 68 L·mol-1·cm-1, possibly because of weak interactions between copolymer and bitumen. The absorptivity values were used to calculate the concentration of SB-type copolymers in blends with bitumen with an accuracy of 10% or better. The method can be used to probe the stability of bitumen-copolymer blends to storage at 165°C, determine the copolymer concentration in commercial PMB, and assess the resistance of PMB to weathering. |
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| Publication date | 2001-01-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 43151
NRC-IRC-9641 |
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| NPARC number | 20331266 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4e199d3a-b98c-4905-a747-edf019aa3a8e |
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| Record created | 2012-07-18 |
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| Record modified | 2020-03-27 |
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