Autor según el artículo: Valverde C., Lligadas G., Ronda J., Galià M., Cádiz V.

Departamento: Química Analítica i Química Orgànica

Autor/es de la URV: Cádiz Deleito, Maria Virginia / Galià Clua, Marina Teresa / Lligadas Puig, Gerard / Ronda Bargalló, Juan Carlos

Palabras clave: Hydrolytic degradation Enzymatic degradation Biobased Aliphatic polyesters

Resumen: 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.

Áreas temáticas: 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

Direcció de correo del autor: gerard.lligadas@urv.cat virginia.cadiz@urv.cat juancarlos.ronda@urv.cat marina.galia@urv.cat

Identificador del autor: 0000-0002-8519-1840 0000-0003-2689-5407 0000-0002-0668-6600 0000-0002-4359-4510

Fecha de alta del registro: 2023-02-22

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0141391018302234

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymer Degradation And Stability. 155 84-94

Referencia 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 del artículo: 10.1016/j.polymdegradstab.2018.07.012

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Tipo de publicación: Journal Publications