Universidad Complutense de Madrid
E-Prints Complutense

Tributyl citrate as an effective plasticizer for biodegradable polymers: effect of plasticizer on free volume and transport and mechanical properties

Impacto

Downloads

Downloads per month over past year

Río Esteban, Francisco Javier del and Chaos, Ana and Sangroniz, Ainara and González, Alba and Iriarte, Mariam and Sarasua, José Ramón and Etxeberria, Agustín (2019) Tributyl citrate as an effective plasticizer for biodegradable polymers: effect of plasticizer on free volume and transport and mechanical properties. Polymen international, 68 (1). pp. 125-133. ISSN 0959-8103

[img] PDF
Restringido a Repository staff only hasta 1 January 2020.

1MB

Official URL: http://dx.doi.org/10.1002/pi.5705




Abstract

The effectiveness of tributyl citrate (TbC) as a plasticizer for polylactide and polyhydroxybutyrate was analysed in order to improve the ductility of these polymers and make them good candidates for food packaging applications. Although the thermal and mechanical properties have been widely studied in the literature, the effect of the plasticizer on free volume and transport properties has not been deeply analysed. The free volume was characterized using positron annihilation lifetime spectroscopy observing its linear increase with TbC content. The permeability to water vapour, oxygen and carbon dioxide was determined and the obtained results were related to the changes in glass transition temperature, level of crystallinity of the samples and free volume. This work would allow a better understanding of the effect of the plasticizer on the barrier and mechanical properties of polymers allowing the development of competitive materials for packaging applications. (c) 2018 Society of Chemical Industry


Item Type:Article
Additional Information:

©2019 Wiley
The authors are grateful for funds from the Basque Government (IT-618-13 and IT-927-16), University of the Basque Country (UFI 11/56) and the Spanish Ministry of Science and Competitiveness MINECO (MAT-2016-78527-P). AS acknowledges the Basque Government for a PhD grant.

Uncontrolled Keywords:Oxygen barrier properties; Poly(lactic acid); Molecular-weight; Carbon-dioxide; Water-vapor; Poly(3-hydroxybutyrate); Sorption; Poly(l-lactide); Permeability; Temperature; Biodegradable polymer; Plasticizer; Free volume; Transport properties; Packaging
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:50784
Deposited On:17 Jan 2019 16:28
Last Modified:18 Jan 2019 09:38

Origin of downloads

Repository Staff Only: item control page