|Titolo||Effect of tungsten disulfide (WS2) nanotubes on structural, morphological and mechanical properties of poly(L-lactide) (PLLA) films|
|Tipo di pubblicazione||Presentazione a Congresso|
|Anno di Pubblicazione||2018|
|Autori||Tammaro, Loredana, Di Luccio Tiziana, Borriello C., Loffredo Fausta, Ramachandran K., Villani Fulvia, Di Benedetto F., Schiller T., Minarini Carla, and Kornfield J.A.|
|Conference Name||AIP Conference Proceedings|
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).