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Effect of tungsten disulfide (WS_2) nanotubes on structural, morphological and mechanical properties of poly(L-lactide) (PLLA) films

Tammaro, Loredana and Di Luccio, Tiziana and Borriello, Carmella and Loffredo, Fausta and Ramachandran, Karthik and Villani, Fulvia and Di Benedetto, Francesca and Schiller, Tara and Minarini, Carla and Kornfield, Julia A. (2018) Effect of tungsten disulfide (WS_2) nanotubes on structural, morphological and mechanical properties of poly(L-lactide) (PLLA) films. In: 9th International Conference on “Times of Polymers and Composites”. AIP Conference Proceedings. No.1981. American Institute of Physics , Melville, NY, Art. No. 020073. ISBN 978-0-7354-1697-0. http://resolver.caltech.edu/CaltechAUTHORS:20180711-145601857

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Abstract

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 (WS_2) nanotubes (NTs) as a novel material to obtain thinner and stronger bioresorbable vascular scaffolds. We studied the influence of WS_2 NTs on the mechanical properties of PLLA-WS_2 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 WS_2 NTs.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/1.5045935DOIArticle
ORCID:
AuthorORCID
Ramachandran, Karthik0000-0003-1820-7555
Kornfield, Julia A.0000-0001-6746-8634
Alternate Title:Effect of tungsten disulfide (WS2) nanotubes on structural, morphological and mechanical properties of poly(L-lactide) (PLLA) films
Additional Information:© 2018 AIP Publishing. This work was supported by the Marie Curie RISE action Bi-Stretch-4-Biomed project (G.A. n. 691238).
Funders:
Funding AgencyGrant Number
Marie Curie Fellowship691238
Subject Keywords:Polylactide; tungsten disulfide nanotubes; nanocomposites; bioresorbable vascular scaffolds
Classification Code:PACS: 87.85.jf; 81.05.Qk; 82.35.Lr.
Record Number:CaltechAUTHORS:20180711-145601857
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180711-145601857
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87770
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:11 Jul 2018 22:15
Last Modified:11 Jul 2018 22:15

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