Biohydrogel from unsaturated polyesteramide: Synthesis, properties and utilization as electrolytic medium for electrochemical supercapacitors
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10.1016/j.polymertesting.2019.106300
Inclou dades d'ús des de 2022
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hdl:2117/340496
Tipus de documentArticle
Data publicació2020-02-01
EditorElsevier
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The utilization of hydrogels derived from biopolymers as solid electrolyte (SE) of electrochemical supercapacitors (ESCs) is a topic of increasing interest because of their promising applications in biomedicine (e.g. for energy storage in autonomous implantable devices). In this work an unsaturated polyesteramide that contains phenylalanine, butenediol and fumarate as building blocks has been photo-crosslinked to obtain a hydrogel (UPEA-h). The structure of UPEA-h, which is characterized by a network of open interconnected pores surrounded by regions with compact morphology, favors ion transport, while the biodegradability and biocompatibility conferred by the a-amino acid unit and the ester group are appropriated for its usage in the biomedical field. Voltammetric and galvanostatic assays have been conducted to evaluate the behavior of UPEA-h when used as SE in ESCs with poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes. Hence, PEDOT/UPEA-h devices displayed supercapacitor response of up 179 F/g and capacitance retention higher than 90%. Moreover, the long-term stability, leakage-current, and self-discharging response of PEDOT/UPEA-h ESCs reflect the great potential of UPEA-h as ion-conductive electrolyte. Indeed, the performance of PEDOT/UPEA-h is higher than found in analogous devices constructed using other biohydrogels as SE (e.g. ¿-carrageenan, poly-¿-glutamic acid and cellulose hydrogels).
CitacióRuano, G. [et al.]. Biohydrogel from unsaturated polyesteramide: Synthesis, properties and utilization as electrolytic medium for electrochemical supercapacitors. "Polymer testing", 1 Febrer 2020, vol. 82.
ISSN0142-9418
Versió de l'editorhttps://www.sciencedirect.com/science/article/abs/pii/S0142941819319075
Col·leccions
- IMEM-BRT- Innovation in Materials and Molecular Engineering - Biomaterials for Regenerative Therapies - Articles de revista [398]
- Doctorat en Polímers i Biopolímers - Articles de revista [152]
- PSEP - Polimers Sintètics: Estructura i Propietats. Polimers Biodegradables. - Articles de revista [181]
- Departament d'Enginyeria Química - Articles de revista [2.223]
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