Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39155
Título: | Thermo-compression molding of chitosan with a deep eutectic mixture for biofilms development |
Autor(es): | Galvis-Sánchez, Andrea C. Sousa, Ana M. M. Hilliou, L. Gonçalves, Maria P. Souza, Hiléia K. S. |
Palavras-chave: | Chitosan Thermocompression Eutectic mixture |
Data: | 2016 |
Editora: | Royal Society of Chemistry |
Revista: | Green chemistry |
Citação: | Galvis-Sanchez, A. C., Sousa, A. M. M., Hilliou, L., Goncalves, M. P., & Souza, H. K. S. (2016). Thermo-compression molding of chitosan with a deep eutectic mixture for biofilms development. Green Chemistry, 18(6), 1571-1580. doi: 10.1039/c5gc02231b |
Resumo(s): | A eutectic mixture of choline chloride (ChCl) and citric acid (CA) was successfully used for the preparation of chitosan (Chit) bio-films by thermo-compression molding. Optimization of the film preparation conditions was carried out using response surface methodology and a Box-Behnken design based on the best mechanical properties and lowest energetic requirements (lower compression load and time). The optimum film, made with chitosan and ChCl–CA (eutectic mixture), was compared with films prepared using only CA in their formulation. Chit–ChCl–CA films presented higher elasticity, opacity and total color difference, and a lower tensile strength in relation to the Chit–CA films. Films prepared with the eutectic mixture presented higher water vapor permeability values. These results were associated with the films microstructures. FTIR analysis confirms the occurrence of chemical changes in the processed films. The thermo-compression process significantly affects the crystallinity of the pristine chitosan. The films thermal stability is depressed when compared to the stability of each component. |
Tipo: | Artigo |
Descrição: | Supplementary information available at: http://www.rsc.org/suppdata/c5/gc/c5gc02231b/c5gc02231b1.pdf |
URI: | https://hdl.handle.net/1822/39155 |
DOI: | 10.1039/C5GC02231B |
ISSN: | 1463-9262 1463-9270 |
Versão da editora: | http://pubs.rsc.org/en/content/articlepdf/2016/gc/c5gc02231b |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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green chem 2015.pdf Acesso restrito! | 1,28 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons