Anthranilic Acid: A Versatile Monomer for the Design of Functional Conducting Polymer Composites

Rachel McCormick, Emily Buckley, Paul J. Donnelly, Victoria Gilpin, Regan McMath, Robert B. Smith, Pagona Papakonstantinou, James Davis

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Abstract

Polyaniline has been utilized in various applications, yet its widespread adoption has often been impeded by challenges. Composite systems have been proposed as a means of mitigating some of these limitations, and anthranilic acid (2-aminobenzoic acid) has emerged as a possible moderator for use in co-polymer systems. It offers improved solubility and retention of electroactivity in neutral and alkaline media, and, significantly, it can also bestow chemical functionality through its carboxylic acid substituent, which can greatly ease post-polymer modification. The benefits of using anthranilic acid (as a homopolymer or copolymer) have been demonstrated in applications including corrosion protection, memory devices, photovoltaics, and biosensors. Moreover, this polymer has been used as a versatile framework for the sequestration of metal ions for water treatment, and, critically, these same mechanisms serve as a facile route for the production of catalytic metallic nanoparticles. However, the widespread adoption of polyanthranilic acid has been limited, and the aim of the present narrative review is to revisit the early promise of anthranilic acid and assess its potential future use within modern smart materials. A critical evaluation of its properties is presented, and its versatility as both a monomer and a polymer across a spectrum of applications is highlighted.
Original languageEnglish
Article number208
Pages (from-to)1-21
Number of pages21
JournalJournal of Composites Science
Volume8
Issue number6
Early online date3 Jun 2024
DOIs
Publication statusPublished online - 3 Jun 2024

Data Access Statement

Data relating to Figure 1 are available on request. No other new data were generated

Keywords

  • anthranilic acid
  • polyaniline
  • polyanthranilic acid
  • conducting polymer
  • electrode

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