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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3866

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

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