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Polymers
Special Issues
Conductive Polymer Composites: Synthesis, Characterization and Applications
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Conductive Polymer Composites: Synthesis, Characterization and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (5 January 2024) | Viewed by 3101

Special Issue Editors

Dr. Shun Watanabe

E-Mail Website
Guest Editor
Department of Advanced Materials Science, The University of Tokyo, Tokyo, Japan
Interests: conductive polymers; charge transport physics; chemical doping; structural property
Dr. Masayuki Takeuchi

E-Mail Website
Guest Editor
MacroMolecules Group, Organic Nanomaterials Center, National Institute for Materials Science, Tsukuba, Japan
Interests: synthetic chemistry; polymer chemistry; functional material chemistry; functional materials; polymers; polymer materials

Special Issue Information

Dear Colleagues,

The Special Issue “Conductive Polymer Composites: Synthesis, Characterization and Application” of Polymers aims to rapidly publish contributions on all aspects of conductive polymer chemistry, physics, and engineering. Since the discovery of iodine-doped polyacetylene in the 1970s, various conductive polymers and their composites have been synthesized and characterized. More than 100 ktons of conductive polymers are manufactured annually, and are being used in various functional coatings and electronic elements. Key challenges still remain in materials science and multiple application areas. We encourage the submission of manuscripts that provide novel insights and significant advances in the field. Topics include, but are not limited to, the keywords below.

Dr. Shun Watanabe
Dr. Masayuki Takeuchi
Guest Editors

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

  • design and synthesis of pi-conjugated polymers
  • characterization of conductive polymers
  • processing–structure–properties relationship
  • methodology of chemical doping
  • structural composites, nanocomposites and supramolecules
  • transport and spectroscopy
  • functional coating and electronic device applications

Published Papers (2 papers)

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Research

13 pages, 11455 KiB  
Article
The Effects of Polyaniline Nanofibers and Graphene Flakes on the Electrical Properties and Mechanical Properties of ABS-like Resin Composites Obtained by DLP 3D Printing
by Somi Jang and Sunghun Cho
Polymers 2023, 15(14), 3079; https://doi.org/10.3390/polym15143079 - 18 Jul 2023
Cited by 3 | Viewed by 1207
Abstract
Three-dimensional printing is regarded as a future-oriented additive manufacturing technology that is making significant contributions to the field of polymer processing. Among the 3D printing methods, the DLP (digital light processing) technique has attracted great interest because it requires a short printing time [...] Read more.
Three-dimensional printing is regarded as a future-oriented additive manufacturing technology that is making significant contributions to the field of polymer processing. Among the 3D printing methods, the DLP (digital light processing) technique has attracted great interest because it requires a short printing time and enables high-quality printing through selective light curing of polymeric materials. In this study, we report a fabrication method for ABS-like resin composites containing polyaniline (PANI) nanofibers and graphene flakes suitable for DLP 3D printing. As-prepared ABS-like resin composite inks employing PANI nanofibers and graphene flakes as co-fillers were successfully printed, obtaining highly conductive and mechanically robust products with the desired shapes and different sizes through DLP 3D printing. The sheet resistance of the 3D-printed composites was reduced from 2.50 × 1015 ohm/sq (sheet resistance of pristine ABS-like resin) to 1.61 × 106 ohm/sq by adding 3.0 wt.% of PANI nanofibers and 1.5 wt.% of graphene flakes. Furthermore, the AP3.0G1.5 sample (the 3D-printed composite containing 3.0 wt.% of PANI nanofibers and 1.5 wt.% of graphene flakes) exhibited 2.63 times (22.23 MPa) higher tensile strength, 1.47 times (553.8 MPa) higher Young’s modulus, and 5.07 times (25.83%) higher elongation at break values compared to the pristine ABS-like resin with a tensile strength of 8.46 MPa, a Young’s modulus of 376.6 MPa, and an elongation at break of 5.09%. Our work suggests the potential use of highly conductive and mechanically robust ABS-like resin composites in the 3D printing industry. This article not only provides optimized DLP 3D printing conditions for the ABS-like resin, which has both the advantages of the ABS resin and the advantages of a thermoplastic elastomer (TPE), but also presents the effective manufacturing process of ABS-like resin composites with significantly improved conductivity and mechanical properties. Full article
(This article belongs to the Special Issue Conductive Polymer Composites: Synthesis, Characterization and Applications)
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13 pages, 4594 KiB  
Article
Effect of Vulcanization on the Electro-Mechanical Sensing Characteristics of Multi-Walled Carbon Nanotube/Silicone Rubber Composites
by Bangwei Wan, Yang Yang, Rongxin Guo, Zhengming Fan, Peng Deng and Shibo Zhang
Polymers 2023, 15(6), 1412; https://doi.org/10.3390/polym15061412 - 12 Mar 2023
Cited by 2 | Viewed by 1517
Abstract
In order to realize effective monitoring for the working performance of seismic isolation structures, a multi-walled carbon nanotube (MWCNT)/methyl vinyl silicone rubber (VMQ) composite was prepared via mechanical blending using dicumyl peroxide (DCP) and 2,5-dimethyl-2,5-di(tert-butyl peroxy)hexane (DBPMH) as vulcanizing agents. The effects of [...] Read more.
In order to realize effective monitoring for the working performance of seismic isolation structures, a multi-walled carbon nanotube (MWCNT)/methyl vinyl silicone rubber (VMQ) composite was prepared via mechanical blending using dicumyl peroxide (DCP) and 2,5-dimethyl-2,5-di(tert-butyl peroxy)hexane (DBPMH) as vulcanizing agents. The effects of the different vulcanizing agents on the dispersion of the MWCNT, electrical conductivity, mechanical properties, and resistance–strain response of the composites were investigated. The experimental results showed that the percolation threshold of the composites prepared with the two vulcanizing agents was low, while the DCP-vulcanized composites showed high mechanical properties and a better resistance–strain response sensitivity and stability, especially after 15,000 loading cycles. According to the analysis using scanning electron microscopy and Fourier infrared spectroscopy, it was found that the DCP contributed higher vulcanization activity, a denser cross-linking network, better and uniform dispersion, and a more stable damage–reconstruction mechanism for the MWCNT network during the deformation load. Thus, the DCP-vulcanized composites showed better mechanical performance and electrical response abilities. When employing an analytical model based on the tunnel effect theory, the mechanism of the resistance–strain response was explained, and the potential of this composite for real-time strain monitoring for large deformation structures was confirmed. Full article
(This article belongs to the Special Issue Conductive Polymer Composites: Synthesis, Characterization and Applications)
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