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Fundamental Aspects of Measuring Copolymerization Reactivity Ratios Using Real-Time FTIR Monitoring |
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| Authors: | Judit E Puskas Kimberley B McAuley S W Polly Chan |
| Institution: | 1. Department of Polymer Science, the University of Akron, Akron, OH 44325-3909;2. Department of Chemical Engineering, Queen's University. Kingston, Ontario, Canada K7L 3N6;3. Department of Polymer Science, the University of Akron, Akron, OH 44325-3909
Department of Chemical Engineering, Queen's University. Kingston, Ontario, Canada K7L 3N6 |
| Abstract: | Real-time FTIR is a powerful tool to obtain copolymerization reactivity ratios because it allows simultaneous monitoring of individual monomer consumption rates. Based on the Mayo-Lewis equation we showed that in reactivity ratios can be defined as the ratios of apparent rate constants of monomer consumption. The validity and limitations on this new method are discussed in the isobutylene-isoprene and isobutylene-styrene carbocationic copolymerization systems. |
| Keywords: | carbocationic copolymerization infrared spectroscopy isobutylene isoprene reactivity ratios styrene |