ESTERIFICATION OF FREE FATTY ACIDS IN THE PRESENCE OF CHITOSAN WITH SULFONIC ACID GROUPS
Sulfonic acid catalysts supported on chitosan have been studied in the esterification of palmitic, stearic an oleic acid with methanol at 60 ºC. The sulfonic acid groups were introduced onto chitosan by grafting. The catalysts were characterized by elemental analysis, SEM, FT-IR and classic titratio...
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| Outros Autores: | , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2014
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| Assuntos: | |
| Texto completo: | http://hdl.handle.net/10174/10008 |
| País: | Portugal |
| Oai: | oai:dspace.uevora.pt:10174/10008 |