Characterization of bionanocomposites based on medium chain length polyhydroxyalkanoates synthesized by Pseudomonas oleovorans
| Autor: | Sylvain Chardron, Anne Elain, Olivier Sire, Brigitte Lignot, Stéphane Bruzaud |
|---|---|
| Přispěvatelé: | Laboratoire d'Ingénierie des Matériaux de Bretagne (LIMATB), Université de Bretagne Sud (UBS)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO)-Université de Brest (UBO) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Polymers and Plastics Concentration effect 02 engineering and technology Pseudomonas oleovorans 010402 general chemistry 01 natural sciences Polyhydroxyalkanoates chemistry.chemical_compound Polymer chemistry Copolymer ComputingMilieux_MISCELLANEOUS chemistry.chemical_classification Nanocomposite biology Organic Chemistry Polymer [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Monomer chemistry Chemical engineering Biocomposite 0210 nano-technology |
| Zdroj: | Polymer Testing Polymer Testing, Elsevier, 2010, 29 (8), pp.966-971. ⟨10.1016/j.polymertesting.2010.08.009⟩ |
| ISSN: | 0142-9418 |
| DOI: | 10.1016/j.polymertesting.2010.08.009⟩ |
| Popis: | Medium chain length polyhydroxyalkanoates (mcl-PHA) have been produced by fed-batch cultivation of Pseudomonas oleovorans. Using octanoic acid as the sole carbon substrate, a copolymer of 3-hydroxyoctanoate and 3-hydroxyhexanoate monomer units was accumulated up to 38 wt. % of cell mass. Mcl-PHA based nanocomposites have then been prepared using Cloisite 15A as nanofiller and characterized. Wide angle X-ray diffraction and rheological analysis of the nanocomposites highlighted their morphologies, which can be considered as well-intercalated structures. The thermal characteristics of mcl-PHA are not significantly affected by the nanofiller incorporation. On the contrary, the storage moduli of nanocomposites are greatly enhanced with increasing clay fraction due to the degree of dispersion of the nanoplatelets in the polymer matrix. |
| Databáze: | OpenAIRE |
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