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Polymers
Special Issues
Self-Healing Polymers
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Self-Healing Polymers

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 February 2023) | Viewed by 4568

Special Issue Editor

Dr. Alexander S. Novikov

E-Mail Website
Guest Editor
Institute of Chemistry, Saint Petersburg State University, Universitetskii pr., 26, Petergof, 198504 St. Petersburg, Russia
Interests: quantum and computational chemistry; inorganic and coordination chemistry; organometallic chemistry; organic chemistry; catalysis; non-covalent interactions; machine learning and artificial intelligence in chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Self-healing polymers is one of the most cutting-edge topics in modern materials science. Self-healing polymers are special class of materials, which can heal the internal defects/cracks or damage generated in any matrix and can rebuild the mechanical properties (e.g., tensile strength) of the cracked part through an autonomic healing process. Such smart substances often have promising mechanical, thermal, optical, and biomimetic properties.
The following modern directions in the development of self-healing polymers could be noted: cross-linked polymers, polymerization of multifunctional monomers, thiol-based polymers, poly(urea-urethane), vitrimers, microcapsule healing, 1D, 2D and 3D vascular based polymeric systems, hollow tube polymers, discrete channels and interconnected networks in polymers, carbon nanotube networks, sacrificial thread stitching, self-healing coatings, self-healing cementitious materials, self-healing ceramics, self-healing metals, self-healing organic dyes, self-healing of ice, bio-based healing.
The aim of this Special Issue is to highlight and review modern trends and attract the attention of the scientific community to the problem of self-healing polymers. All types of papers (reviews, mini-reviews, full papers, short communications, technical notes, highlights, etc.) are welcome for consideration.

Dr. Alexander S. Novikov
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

  • self-healing
  • polymers
  • elastomers
  • ceramics
  • carbon nanotubes
  • coatings
  • biomimetic materials

Published Papers (2 papers)

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Editorial

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1 pages, 147 KiB  
Editorial
Self-Healing Polymers
by Alexander S. Novikov
Polymers 2022, 14(11), 2261; https://doi.org/10.3390/polym14112261 - 31 May 2022
Viewed by 2031
Abstract
Self-healing polymers are synthetic or artificially-created substances that have the built-in ability to automatically repair damages to themselves without any external diagnosis of the problem or human intervention [...] Full article
(This article belongs to the Special Issue Self-Healing Polymers)

Research

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25 pages, 6341 KiB  
Article
Fast Self-Healing at Room Temperature in Diels–Alder Elastomers
by Ali Safaei, Joost Brancart, Zhanwei Wang, Sogol Yazdani, Bram Vanderborght, Guy Van Assche and Seppe Terryn
Polymers 2023, 15(17), 3527; https://doi.org/10.3390/polym15173527 - 24 Aug 2023
Cited by 2 | Viewed by 1562
Abstract
Despite being primarily categorized as non-autonomous self-healing polymers, we demonstrate the ability of Diels–Alder polymers to heal macroscopic damages at room temperature, resulting in complete restoration of their mechanical properties within a few hours. Moreover, we observe immediate partial recovery, occurring mere minutes [...] Read more.
Despite being primarily categorized as non-autonomous self-healing polymers, we demonstrate the ability of Diels–Alder polymers to heal macroscopic damages at room temperature, resulting in complete restoration of their mechanical properties within a few hours. Moreover, we observe immediate partial recovery, occurring mere minutes after reuniting the fractured surfaces. This fast room-temperature healing is accomplished by employing an off-stoichiometric maleimide-to-furan ratio in the polymer network. Through an extensive investigation of seven Diels–Alder polymers, the influence of crosslink density on self-healing, thermal, and (thermo-)mechanical performance was thoroughly examined. Crosslink density variations were achieved by adjusting the molecular weight of the monomers or utilizing the off-stoichiometric maleimide-to-furan ratio. Quasistatic tensile testing, dynamic mechanical analysis, dynamic rheometry, differential scanning calorimetry, and thermogravimetric analysis were employed to evaluate the individual effects of these parameters on material performance. While lowering the crosslink density in the polymer network via decreasing the off-stoichiometric ratio demonstrated the greatest acceleration of healing, it also led to a slight decrease in (dynamic) mechanical performance. On the other hand, reducing crosslink density using longer monomers resulted in faster healing, albeit to a lesser extent, while maintaining the (dynamic) mechanical performance. Full article
(This article belongs to the Special Issue Self-Healing Polymers)
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