Author, as appears in the article.: Valverde C., Lligadas G., Ronda J., Galià M., Cádiz V.
Department: Química Analítica i Química Orgànica
URV's Author/s: Cádiz Deleito, Maria Virginia / Galià Clua, Marina Teresa / Lligadas Puig, Gerard / Ronda Bargalló, Juan Carlos
Keywords: Hydrolytic degradation Enzymatic degradation Biobased Aliphatic polyesters
Abstract: 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.
Thematic Areas: 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
Author's mail: marina.galia@urv.cat juancarlos.ronda@urv.cat gerard.lligadas@urv.cat
Author identifier: 0000-0002-4359-4510 0000-0002-0668-6600 0000-0002-8519-1840
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S0141391018302234
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Polymer Degradation And Stability. 155 84-94
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
Article's DOI: 10.1016/j.polymdegradstab.2018.07.012
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
Publication Type: Journal Publications
Repositori URV