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Please use this identifier to cite or link to this item:
http://hdl.handle.net/10198/3866
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| Título: | Monitoring of lignin-based polyurethane synthesis by FTIR-ATR |
| Autor: | Cateto, C.A.
Barreiro, M.F.
Rodrigues, A.E. |
| Palavras-chave: | Lignin
Polyurethanes
Synthesis
FTIR-ATR monitoring |
| Issue Date: | 2005 |
| Citação: | Cateto, C.A.; Barreiro, M.F.; Rodrigues, A.E. (2005) - Monitoring of lignin-based polyurethane synthesis by FTIR-ATR. In International Lignin Forum - 7th ILI Forum. Barcelona, Spain. |
| Resumo: | FTIR (Fourier Transform Infrared Spectroscopy), working in ATR (Attenuated Total Reflectance) mode was applied to study the formation of lignin-based polyurethanes. Although some studies related to the use of lignins in polyurethane synthesis, are available in literature, still persist a gap for a systematic study of this kind of systems involving the measurement of kinetic data, optimization and modelling of the process. This methodology allows the test of different formulations at a scale of 3-5 grams, considering several process variables: temperature, NCO/OH ratio, type and MW of the polyol, type of isocyanate, type and weight content of lignin. This work aims to describe the methodology used to perform the FTIR experiments by presenting a case study. |
| Arbitragem científica: | yes |
| URI: | http://hdl.handle.net/10198/3866 |
| Appears in Collections: | DTQB - Artigos em Proceedings Não Indexados ao ISI/Scopus
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