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Polymers
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Conducting Polymers for Advanced Applications Volume II
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Conducting Polymers for Advanced Applications Volume II

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: 15 June 2024 | Viewed by 7811

Special Issue Editor

Dr. Ana Charas

E-Mail Website
Guest Editor
Organic Electronics Group, Instituto de Telecomunicações, Instituto Superior Técnico-Torre Norte, Av. Rovisco Pais,1, 1049-001 Lisboa, Portugal
Interests: organic conductors and semiconductors; electroluminescent materials; organic photovoltaic cells; organic field-effect transistors; self assembly, nanostructuring of organic polymers and small molecules
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Conducting polymers are an important new generation of materials that can combine high conductivity levels with the easy processability of conventional/insulating polymers. The fine-tuning of their opto-electronic properties through controlling doping levels and rational molecular design enables applications in diverse fields, from the biomedical (as actuators to artificial muscles, biosensors, tissue engineering, etc.), to energy-related areas (as batteries, organic photovoltaic cells, and supercapacitors), and thin-film electronics (printed electronic devices, organic light-emitting diodes, sensors, organic field-effect transistors, electrochromic devices, etc.).

This Special Issue aims to update the progress on the design and synthesis of conducting polymers, including semiconducting polymers, as well as on elucidating polymer structure–properties, targeting advances in relevant applications. Both reviews and original research articles are welcome.

Dr. Ana de Matos Charas
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • conjugated/semiconducting polymers
  • conducting polymers
  • molecular design of conducting polymers
  • synthesis of conducting polymers
  • structure–properties of conducting polymers
  • polymer electronic devices

Published Papers (4 papers)

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Research

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15 pages, 9908 KiB  
Article
Preparation and Characterization of Conductive/Self-Healing Resin Nanocomposites Based on Tetrafunctional Furan-Functionalized Aniline Trimer Modified Graphene
by Feng Wang, Yichuan Zhang, Su Hu, Xiangyu Zhong, Jiangbo Bai, Yang Zhang and Jianwen Bao
Polymers 2024, 16(1), 90; https://doi.org/10.3390/polym16010090 - 28 Dec 2023
Cited by 1 | Viewed by 731
Abstract
The nanocomposites with reversible cross-linking covalent bonds were prepared by reacting furfurylamine (FA)-modified diglycidyl ether of bisphenol A (DGEBA) and furfuryl-functionalized aniline trimer-modified graphene (TFAT-G) with bismaleimide (BMI) via the Diels-Alder (DA) reaction. The successful synthesis of the TFAT modifier is confirmed by [...] Read more.
The nanocomposites with reversible cross-linking covalent bonds were prepared by reacting furfurylamine (FA)-modified diglycidyl ether of bisphenol A (DGEBA) and furfuryl-functionalized aniline trimer-modified graphene (TFAT-G) with bismaleimide (BMI) via the Diels-Alder (DA) reaction. The successful synthesis of the TFAT modifier is confirmed by nuclear magnetic resonance (NMR) hydrogen spectroscopy and IR spectroscopy tests. The structure and properties of TFAT-G epoxy nanocomposites are characterized by scanning electron microscopy (SEM), differential scanning calorimeter (DSC), tensile, and resistivity. The results show that TFAT-G was uniformly dispersed in the resin, and 1 wt% TFAT-G composites increased to 233% for tensile strength, 63% for elongation at break, 66% for modulus, and 7.8 °C for Tg. In addition, the addition of unmodified graphene degrades the mechanical properties of the composite. Overall, the graphene/self-healing resin nanocomposites have both good self-healing function and electrical conductivity by adding 1 wt% modified graphene; this allows for the maintenance of the original 83% strength and 89% electrical conductivity after one cycle of heating repair. Full article
(This article belongs to the Special Issue Conducting Polymers for Advanced Applications Volume II)
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14 pages, 1521 KiB  
Article
All-Solid State Potentiometric Sensors for Desvenlafaxine Detection Using Biomimetic Imprinted Polymers as Recognition Receptors
by Majed A. Bajaber and Ayman H. Kamel
Polymers 2022, 14(22), 4814; https://doi.org/10.3390/polym14224814 - 09 Nov 2022
Cited by 3 | Viewed by 1360
Abstract
Using single-walled carbon nanotubes (SWCNTs) as an ion-to-electron transducer, a novel disposable all-solid-state desvenlafaxine-selective electrode based on a screen-printed carbon paste electrode was created. SWCNTs were put onto the carbon-paste electrode area, which was protected by a poly (vinyl chloride) (PVC) membrane with [...] Read more.
Using single-walled carbon nanotubes (SWCNTs) as an ion-to-electron transducer, a novel disposable all-solid-state desvenlafaxine-selective electrode based on a screen-printed carbon paste electrode was created. SWCNTs were put onto the carbon-paste electrode area, which was protected by a poly (vinyl chloride) (PVC) membrane with a desvenlafaxine-imprinted polymer serving as a recognition receptor. Electrochemical impedance spectroscopy and chronopotentiometric techniques were used to examine the electrochemical characteristics of the SWCNTs/PVC coating on the carbon screen-printed electrode. The electrode displayed a 57.2 ± 0.8 mV/decade near-Nernstian slope with a 2.0 × 10−6 M detection limit. In 10 mM phosphate buffer, pH 6, the ODV-selective electrodes displayed a quick reaction (5 s) and outstanding stability, repeatability, and reproducibility. The usefulness of electrodes was demonstrated in samples of ODV-containing pharmaceutical products and human urine. These electrodes have the potential to be mass produced and employed as disposable sensors for on-site testing, since they are quick, practical, and inexpensive. Full article
(This article belongs to the Special Issue Conducting Polymers for Advanced Applications Volume II)
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Review

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42 pages, 2524 KiB  
Review
Functionalization of Conductive Polymers through Covalent Postmodification
by Silvestre Bongiovanni Abel, Evelina Frontera, Diego Acevedo and Cesar A. Barbero
Polymers 2023, 15(1), 205; https://doi.org/10.3390/polym15010205 - 31 Dec 2022
Cited by 8 | Viewed by 2697
Abstract
Organic chemical reactions have been used to functionalize preformed conducting polymers (CPs). The extensive work performed on polyaniline (PANI), polypyrrole (PPy), and polythiophene (PT) is described together with the more limited work on other CPs. Two approaches have been taken for the functionalization: [...] Read more.
Organic chemical reactions have been used to functionalize preformed conducting polymers (CPs). The extensive work performed on polyaniline (PANI), polypyrrole (PPy), and polythiophene (PT) is described together with the more limited work on other CPs. Two approaches have been taken for the functionalization: (i) direct reactions on the CP chains and (ii) reaction with substituted CPs bearing reactive groups (e.g., ester). Electrophilic aromatic substitution, SEAr, is directly made on the non-conductive (reduced form) of the CPs. In PANI and PPy, the N-H can be electrophilically substituted. The nitrogen nucleophile could produce nucleophilic substitutions (SN) on alkyl or acyl groups. Another direct reaction is the nucleophilic conjugate addition on the oxidized form of the polymer (PANI, PPy or PT). In the case of PT, the main functionalization method was indirect, and the linking of functional groups via attachment to reactive groups was already present in the monomer. The same is the case for most other conducting polymers, such as poly(fluorene). The target properties which are improved by the functionalization of the different polymers is also discussed. Full article
(This article belongs to the Special Issue Conducting Polymers for Advanced Applications Volume II)
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33 pages, 3136 KiB  
Review
Mechanochemical Synthesis of Polyanilines and Their Nanocomposites: A Critical Review
by Cesar A. Barbero and Diego F. Acevedo
Polymers 2023, 15(1), 133; https://doi.org/10.3390/polym15010133 - 28 Dec 2022
Cited by 6 | Viewed by 2369
Abstract
The mechanochemical synthesis of polyanilines (PANIs), made by oxidative polymerization of anilines, is reviewed. First, previous knowledge of the polymerization reaction in solution is discussed to understand the effect of different parameters: oxidant/monomer ratio, added acid, oxidant, temperature and water content on the [...] Read more.
The mechanochemical synthesis of polyanilines (PANIs), made by oxidative polymerization of anilines, is reviewed. First, previous knowledge of the polymerization reaction in solution is discussed to understand the effect of different parameters: oxidant/monomer ratio, added acid, oxidant, temperature and water content on the properties of the conducting polymers (molecular weight, degradation, doping/oxidation level, conductivity, and nanostructure). The work on mechanochemical polymerization (MCP) of anilines is analyzed in view of previous data in solution, and published data are critically reconsidered to clarify the interpretation of experimental results. A key factor is the production of acids during polymerization, which is often overlooked. The production of gaseous HCl during MCP of aniline hydrochloride is experimentally observed. Since some experiments involves the addition of small amounts of water, the kinetics and heat balance of the reaction with concentrated solutions were simulated. A simple experiment shows fast (<2 min) heating of the reaction mixture to the boiling point of water and temperature increments are observed during MCP in a mortar. The form and sizes of PANI nanostructures made by MCP or solution are compared. The extensive work on the production of nanocomposites by MCP of anilines together with different nanomaterials (porous clays, graphene, carbon nanotubes, metal, and oxide nanoparticles) is also described. Full article
(This article belongs to the Special Issue Conducting Polymers for Advanced Applications Volume II)
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