Biodegradable starch-based films containing saturated fatty acids: thermal, infrared and raman spectroscopic characterization
| Autor: | Juliana Bonametti Olivato, Carmen M.O. Müller, Marcelo M. Nobrega, Fabio Yamashita |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
PBAT-starch blends Thermoplastic Materials science Infrared Starch Organic Chemistry food and beverages blown extrusion lcsh:Chemical technology chemistry.chemical_compound symbols.namesake chemistry Chemical engineering Adipate Glycerol symbols Chemical Engineering (miscellaneous) Organic chemistry lcsh:TP1-1185 Fatty acids Benzene Thermal analysis Raman spectroscopy thermal analysis |
| Zdroj: | Polímeros, Vol 22, Iss 5, Pp 467-474 (2012) Polímeros, Volume: 22, Issue: 5, Pages: 475-480, Published: 30 OCT 2012 Polímeros, Vol 22, Iss 5, Pp 475-480 Polímeros, Iss ahead, p 0 (2012) Polímeros v.22 n.5 2012 Polímeros (São Carlos. Online) Associação Brasileira de Polímeros (ABPol) instacron:ABPO |
| ISSN: | 1678-5169 0104-1428 |
| Popis: | Biodegradable films of thermoplastic starch and poly (butylene adipate co-terephthalate) (PBAT) containing fatty acids were characterized thermally and with infrared and Raman spectroscopies. The symmetrical character of the benzene ring in PBAT provided a means to illustrate the difference between these spectroscopic techniques, because a band appeared in the Raman spectrum but not in the infrared. The thermal analysis showed three degradation stages related to fatty acids, starch and PBAT. The incorporation of saturated fatty acids with different molecular mass (caproic, lauric and stearic) did not change the nature of the chemical bonds among the components in the blends of starch, PBAT and glycerol, according to the thermal analysis, infrared and Raman spectroscopies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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