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Influence of processing parameters on the molecular weight and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)

✍ Scribed by Rasmus Renstad; Sigbritt Karlsson; Ann-Christine Albertsson


Book ID
108400345
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
794 KB
Volume
57
Category
Article
ISSN
0141-3910

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It is proposed that melt-extrusion of poly(3-hydroxybutyrate-co-3hydroxyvalerate) at varying processing temperatures and screw speeds causes changes in the atomic positioning of the oxygen atoms in the helix structure due to torsion of the main chain bonds. By wide angle X-ray scattering it was obse

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The influence of thermal history on the properties of commercial P(3HB-co-l2%-3HV) was studied. Thermogravimetric analysis and differential scanning calorimetry revealed that the plasticizer evaporated at 140Β°C or higher. The loss of plasticizer during thermal treatment at 170 and 180Β°C resulted in