Evaluating the Effect of Iron(III) in the Preparation of a Conductive Porous Composite Using a Biomass Waste-Based Starch Template

Laria Rodríguez-Quesada, Karla Ramírez-Sánchez, Sebastián León-Carvajal, Giovanni Sáenz-Arce, Fabián Vásquez-Sancho, Esteban Avendaño-Soto, Juan José Montero-Rodríguez, Ricardo Starbird-Perez

Research output: Contribution to journalArticlepeer-review

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Abstract

In this work, the effect of iron(III) in the preparation of a conductive porous composite using a biomass waste-based starch template was evaluated. Biopolymers are obtained from natural sources, for instance, starch from potato waste, and its conversion into value-added products is highly significant in a circular economy. The biomass starch-based conductive cryogel was polymerized via chemical oxidation of 3,4-ethylenedioxythiophene (EDOT) using iron(III) p-toluenesulfonate as a strategy to functionalize porous biopolymers. Thermal, spectrophotometric, physical, and chemical properties of the starch template, starch/iron(III), and the conductive polymer composites were evaluated. The impedance data of the conductive polymer deposited onto the starch template confirmed that at a longer soaking time, the electrical performance of the composite was improved, slightly modifying its microstructure. The functionalization of porous cryogels and aerogels using polysaccharides as raw materials is of great interest for applications in electronic, environmental, and biological fields.

Original languageEnglish
Article number2560
JournalPolymers
Volume15
Issue number11
DOIs
StatePublished - Jun 2023

Keywords

  • biomass waste
  • biopolymer
  • conductive composites
  • porous material
  • starch

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