Effect of tungsten disulfide (WS2) nanotubes on structural, morphological and mechanical properties of poly(L-lactide) (PLLA) films
| Autor: | Tiziana Di Luccio, Francesca Di Benedetto, Carla Minarini, Loredana Tammaro, Tara Schiller, Fulvia Villani, Karthik Ramachandran, Julia A. Kornfield, Carmella Borriello, Fausta Loffredo |
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| Přispěvatelé: | Minarini, C., Di Benedetto, F., Villani, F., Loffredo, F., Borriello, C., Di Luccio, T., Tammaro, L., D'Amore, Alberto, Acierno, Domenico, Grassia, Luigi |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Annealing (metallurgy) Tungsten disulfide 02 engineering and technology Polylactide law.invention 03 medical and health sciences chemistry.chemical_compound Crystallinity symbols.namesake Optical microscope law nanocomposites tungsten disulfide nanotubes tungsten disulfide nanotube 030304 developmental biology chemistry.chemical_classification 0303 health sciences Nanocomposite nanocomposite Polymer bioresorbable vascular scaffolds 021001 nanoscience & nanotechnology Biodegradable polymer chemistry Chemical engineering symbols bioresorbable vascular scaffold 0210 nano-technology Raman spectroscopy |
| Zdroj: | AIP Conference Proceedings volume 1981 |
| ISSN: | 0094-243X |
| Popis: | Poly(L-lactide) (PLLA) is a semicrystalline, biocompatible and biodegradable polymer widely employed in many applications (food packaging, biomedical devices, drug delivery systems). This work deals with nanocomposites of PLLA and tungsten disulfide (WS2) nanotubes (NTs) as a novel material to obtain thinner and stronger bioresorbable vascular scaffolds. We studied the influence of WS2 NTs on the mechanical properties of PLLA-WS2 films. Polarized optical microscopy reveals a high degree of orientation of the polymer molecules in stretched films that further increases with a post-stretching annealing treatment. At the same time, X-ray diffraction (XRD) and Raman spectroscopy confirm enhancement of the crystallinity induced by the WS2 NTs. © 2018 Author(s). |
| Databáze: | OpenAIRE |
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