Browsing by Author "del Río, Javier"
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Improving the barrier character of poly(caprolactone): transport properties and free volume of immiscible blends
Sangroniz Agudo, Ainara; Sangroniz Agudo, Leire; González Vives, Alba; Santamaría Ibarburu, Pedro Antonio; del Río, Javier; Etxeberria Lizarraga, Agustín (Elsevier, 2019-03-11)Miscible and thermally stable blends of biodegradable poly(butylene adipate-co-terephthalate) (PBAT) with poly(hydroxy ether of bisphenol A) (PH) are investigated to obtain membranes for packaging applications. Previously ... -
Influence of the rigid amorphous fraction and crystallinity on polylactides transport properties
Sangroniz Agudo, Ainara; Chaos, Ana; Iriarte Ormazabal, María Angeles ; del Río, Javier; Sarasua Oiz, José Ramón ; Etxeberria Lizarraga, Agustín (ACS, 2018-05-15)The effect of the crystallinity and polymorphism of PLLA and PDLA-PLLA 50:50 blends on the free volume and transport properties have been studied. In the case of PDLA-PLLA 50:50 the increase on crystallinity promotes a ... -
Lactide-caprolactone copolymers with tuneable barrier properties for packaging applications
Sangroniz Agudo, Ainara; Sangroniz Agudo, Leire; Shaghayegh, Hamzehlou; del Río, Javier; Santamaría Ibarburu, Pedro Antonio; Sarasua Oiz, José Ramón ; Iriarte Ormazabal, María Angeles ; Leiza Recondo, José Ramón; Etxeberria Lizarraga, Agustín (Elsevier, 2020-06-07)Lactide-caprolactone copolymers have been synthetized employing two metallic catalysts, Ph3Bi and SnOct2. The analysis of the microstructure by NMR reveals that gradient like copolymers are obtained with SnOct2 catalyst, ... -
Polilaktida plastifikatua elikagaien ontziratzerako: plastifikatzailearen pisu molekularraren eragina bolumen aske eta hesi-ezaugarrietan
Sangroniz Agudo, Ainara; Chaos, Ana; del Río, Javier; Iriarte Ormazabal, María Angeles ; Etxeberria Lizarraga, Agustín (Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2020)Nowadays the main strategy to solve the problem of plastic waste is to use biodegradable polymers. Among them, polylactide has attracted a great attention. However in order to be suitable for packaging applications its ... -
Tributyl citrate as an effective plasticizer for biodegradable polymers: effect of the plasticizer on the free volume, transport and mechanical properties
Chaos, Ana; Sangroniz Agudo, Ainara; González Vives, Alba; Iriarte Ormazabal, María Angeles ; Sarasua Oiz, José Ramón ; del Río, Javier; Etxeberria Lizarraga, Agustín (Society of Chemical Industry. Wiley, 2018-06-16)The effectiveness of tributyl citrate (TbC) as plasticizer for polylactide (PLLA) and poly(hydroxybutyrate) (PHB) was analyzed in order to improve the ductility of these polymers and make them good candidates for food ...