Bulk and Surface Quantification of a Biodegradable and -medical Copolyester
| Autor: | Daniel Léonard, Hans Jörg Mathieu, EM Moser, Patrick Bertrand, F.-R. Lang |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Thermoplastic Polymers and Plastics Organic Chemistry Analytical chemistry Polymer Nuclear magnetic resonance spectroscopy Mass spectrometry Copolyester Inorganic Chemistry Secondary ion mass spectrometry Differential scanning calorimetry chemistry X-ray photoelectron spectroscopy Materials Chemistry |
| Zdroj: | Macromolecules. 31:6177-6183 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma980059e |
| Popis: | A multitechnique analysis approach has been used to study the bulk and surface properties of a biodegradable copolymer produced from agricultural feedstocks. The sample analyzed is a thermoplastic copolyester commercialized under the trademark Biopol that contains beta-hydroxybutyrate (HB) and beta-hydroxyvalerate (HV) units incorporated randomly throughout the polymer chain. The techniques applied are gas chromatography mass spectrometry (GC-MS), nuclear magnetic resonance spectroscopy (NMR), differential scanning calorimetry (DSC), time-of-flight secondary ion mass spectrometry (TOF-SIMS), and X-ray photoelectron spectroscopy (XPS). Special emphasis is put on the quantitative determination of the surface composition of the copolyester by TOF-SIMS and XPS as well as the analysis of the molar bulk fraction by NMR and DSC. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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