Autor segons l'article: Valverde C., Lligadas G., Ronda J., Galià M., Cádiz V.
Departament: Química Analítica i Química Orgànica
Autor/s de la URV: Cádiz Deleito, Maria Virginia / Galià Clua, Marina Teresa / Lligadas Puig, Gerard / Ronda Bargalló, Juan Carlos
Paraules clau: Hydrolytic degradation Enzymatic degradation Biobased Aliphatic polyesters
Resum: The hydrolytic and enzymatic degradations of aliphatic polyesters: poly (10,11-epoxyundecanoic acid) (PEAU) bearing hydroxyl groups along the main chain and poly (11-hydroxyundecanoate)diol (PHU), were studied and compared to that of commercial poly (ε-caprolactone)diol (PCL). Changes taking place after polyester degradation in sample weight, molecular weight (Mn), chemical constitution, thermal properties, crystallinity and morphology were monitored by size exclusion chromatography (SEC), 1H nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-Ray diffraction (XRD) and environmental scanning electron and atomic force microscopies (ESEM and AFM). A significant decrease of PEUA Mn in both hydrolytic and enzymatic degradation was detected versus PHU and PCL, and related to its hydrophilic character, by the presence of hydroxyl pendant groups, and the superior amorphous character. An accelerated degradation in acidic media, monitored by SEC and 1H NMR spectroscopy to study in detail all residual material of three polyesters, showed the complete degradation only in the case of PEUA and PCL.
Àrees temàtiques: Química Polymers and plastics Polymer science Odontología Mechanics of materials Materials chemistry Materiais Interdisciplinar Farmacia Engenharias ii Engenharias i Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Biotecnología Astronomia / física Arquitetura e urbanismo
ISSN: 01413910
Adreça de correu electrònic de l'autor: marina.galia@urv.cat juancarlos.ronda@urv.cat gerard.lligadas@urv.cat
Identificador de l'autor: 0000-0002-4359-4510 0000-0002-0668-6600 0000-0002-8519-1840
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S0141391018302234
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Polymer Degradation And Stability. 155 84-94
Referència de l'ítem segons les normes APA: Valverde C., Lligadas G., Ronda J., Galià M., Cádiz V. (2018). Hydrolytic and enzymatic degradation studies of aliphatic 10-undecenoic acid-based polyesters. Polymer Degradation And Stability, 155(), 84-94. DOI: 10.1016/j.polymdegradstab.2018.07.012
DOI de l'article: 10.1016/j.polymdegradstab.2018.07.012
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2018
Tipus de publicació: Journal Publications
Repositori URV