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| Titel: |
Effects of Blending Conditions and Catalyst Concentration on the Structural, Thermal and Morphological Properties of Polycarbonate/Poly (Ethylene Terephthalate) Blends |
| Auteur: |
Guessoum, M. Nekkaa, S. Haddaoui, N. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 57 (2008) nr. 8 pagina's 759-770 |
| Jaar: |
2008-08 |
| Inhoud: |
The effects of mixing conditions and transesterification catalyst concentration on the structural, thermal and morphological properties of a 50/50 polycarbonate (PC)/poly (ethylene terephthalate) (PET) system were investigated by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and by solubility measurements. From the increase in the solubility of the blends in dichloromethane and the decrease of their degree of crystallinity, it was concluded that on increasing the mixing time and the catalyst concentration, transesterification becomes more important. Thermal analysis revealed also a noticeable increase of the crystallization temperature and a slight decrease of the melting temperature. These results suggest that when transesterification occurs extensively, the crystallization tendency declines progressively until finally a completely soluble material is obtained as revealed by solubility measurements. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 7 gevonden artikelen
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