| Autor: |
M. Avella, M. E. Errico, B. Immirzi, M. Malinconico, L. Paolillo, FALCIGNO, LUCIA |
| Přispěvatelé: |
M., Avella, M. E., Errico, B., Immirzi, M., Malinconico, Falcigno, Lucia, L., Paolillo |
| Jazyk: |
angličtina |
| Rok vydání: |
1998 |
| Popis: |
Poly(beta-hydroxybutyrate) (PHB) is a biotechnologically produced polyester, highly crystalline, totally biodegradable with low versatility in mechanical properties. To overcome this problem we performed a reactive blending procedure with a glassy acrylic polymer, poly(methyl methacrylate) (PMMA), via water suspension polymerisation of the acrylic monomer precursor onto poly(beta-hydroxybutyrate). It was possible to isolate the co-polymeric phase formed between the two polymers and to characterize it using NMR and differential scanning calorimetry (DSC) techniques. Fracture tests on the blends gave a satisfactory response: in fact the Critical Energy Release Factor (Gc) calculated by Linear Elastic Fracture Mechanism (LEFM) theory of a PHB/PMMA 70/30 wt/wt blend is less than two times larger than that of neat PHB. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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