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dc.date.accessioned 2020-06-29T12:38:11Z
dc.date.available 2020-06-29T12:38:11Z
dc.date.issued 2018-09
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/99331
dc.description.abstract Individual films of polyhydroxyalkanoates (PHA) and polylactic acid (PLA) and their blends were developed by solvent casting. PHA was obtained from activated sludges from a wastewater-treatment system at a laboratory scale. This work focused on analyzing the microstructural properties and thermal behaviors of individual films of PHA and PLA as well as those of their blends. The behaviors of the biodegradation processes of the individual films and blends were examined from a microstructural point of view. ATR-FTIR spectra indicated the existence of weak molecular interactions between the polymers. The formulation of blend films improved the crystallinity of PLA; additionally, it induced the polymer-recrystallization phenomenon, because crystallized PHA acted as a PLA-nucleating agent. This phenomenon explains the improvements in the films´ water-vapor-barrier properties. The blends exposed to a biodegradation process showed an intermediate behavior between PLA and PHA, leading to a consistent basis for designing systems tailored to a particular purpose. en
dc.format.extent 10033-10040 es
dc.language en es
dc.subject Biopolymers es
dc.subject Crystallinity es
dc.subject Infrared spectroscopy es
dc.subject Modulated DSC es
dc.subject Morphology es
dc.subject Polymer blends es
dc.title Microstructural Behaviors of Matrices Based on Polylactic Acid and Polyhydroxyalkanoates en
dc.type Articulo es
sedici.identifier.uri https://ri.conicet.gov.ar/11336/87647 es
sedici.identifier.uri http://pubs.acs.org/doi/10.1021/acs.jafc.8b01506 es
sedici.identifier.other https://doi.org/10.1021/acs.jafc.8b01506 es
sedici.identifier.other hdl:11336/87647 es
sedici.identifier.issn 0021-8561 es
sedici.creator.person Alzate Marín, Juan Carlos es
sedici.creator.person Rivero, Sandra es
sedici.creator.person Pinotti, Adriana es
sedici.creator.person Caravelli, Alejandro Horacio es
sedici.creator.person Zaritzky, Noemí Elisabet es
sedici.subject.materias Bioquímica es
sedici.description.fulltext true es
mods.originInfo.place Centro de Investigación y Desarrollo en Criotecnología de Alimentos es
sedici.subtype Preprint es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Agricultural and Food Chemistry es
sedici.relation.journalVolumeAndIssue vol. 66, no. 38 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)