Study of Miscibility in Polymer Blends Obtained from Binary Inclusion Complexes of γ-Cyclodextrin and Polycarbonate/Poly(Ethylene Terephthalate)
| Autor: | Lorena Garay Carrasco, Ligia Gargallo, Deodato Radić |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Nanostructure Materials science Polymers and Plastics Cyclodextrin Coprecipitation General Chemistry Condensed Matter Physics Miscibility Chemical engineering chemistry visual_art Polymer chemistry Materials Chemistry visual_art.visual_art_medium Polymer blend Fourier transform infrared spectroscopy Polycarbonate |
| Zdroj: | Journal of Macromolecular Science, Part B. 51:1750-1765 |
| ISSN: | 1525-609X 0022-2348 |
| DOI: | 10.1080/00222348.2012.662452 |
| Popis: | In this work the synthesis and characterization of the nanostructure of polymer blends of polycarbonate (PC) and poly(ethylene terephthalate) (PET) obtained from their inclusion complexes with γ-cyclodextrin are reported. The blends prepared by this method present differences in their miscibility compared with those blends obtained by conventional methods like solution casting, coprecipitation, or melt blending. In order to understand the influence of molecular weight in the inclusion complex process, PCs of Mw = 64,000 and 28,000 g/mol were used. The analysis of the nanostructured blend by Fourier transform infrared (FTIR), 1H-nuclear magnetic resonance (1H-NMR), wide-angle X-ray diffraction (WAXD), differential scanning colorimetry (DSC), and thermogravimetric analysis (TGA) suggests the existence of specific intermolecular interactions between PC and PET that promote miscibility in this normally immiscible polymer blend. Studies by FTIR confirm that the miscibility found was not due to a transesterific... |
| Databáze: | OpenAIRE |
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