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Special Issue "Self-Healing Polymers"

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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 5256

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Dr. Alexander S. Novikov

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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
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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 (4 papers)

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Open AccessEditorial

Self-Healing Polymers

Alexander S. Novikov

Polymers 2022, 14(11), 2261; https://doi.org/10.3390/polym14112261 - 31 May 2022

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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)

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Open AccessArticle

Fast Self-Healing at Room Temperature in Diels–Alder Elastomers

and

Polymers 2023, 15(17), 3527; https://doi.org/10.3390/polym15173527 - 24 Aug 2023

Viewed by 600

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 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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Open AccessArticle

Periodic Self-Assembly of Poly(ethyleneimine)–poly(4-styrenesulfonate) Complex Coacervate Membranes

Ekaterina V. Kukhtenko

Filipp V. Lavrentev

Vladimir V. Shilovskikh

Konstantin G. Nikolaev

Daria V. Andreeva

and

Ekaterina V. Skorb

Polymers 2023, 15(1), 45; https://doi.org/10.3390/polym15010045 - 22 Dec 2022

Cited by 3 | Viewed by 1461

Abstract

Coacervation is a self-assembly strategy based on the complexation of polyelectrolytes, which is utilized in biomedicine and agriculture, as well as automotive and textile industries. In this paper, we developed a new approach to the on-demand periodic formation of polyelectrolyte complexes through a Liesegang-type hierarchical organization. Adjustment of reaction conditions allows us to assemble materials with a tunable spatiotemporal geometry and establish materials’ production cycles with a regulated periodicity. The proposed methodology allows the membrane to self-assemble when striving to reach balance and self-heal after exposure to external stimuli, such as potential difference and high pH. Using chronopotentiometry, K⁺ ion permeability behavior of the PEI–PSS coacervate membranes was demonstrated. The periodically self-assembled polyelectrolyte nanomembranes could further be integrated into novel energy storage devices and intelligent biocompatible membranes for bionics, soft nanorobotics, biosensing, and biocomputing. Full article

(This article belongs to the Special Issue Self-Healing Polymers)

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Open AccessArticle

Structural Features of Eu³⁺ and Tb³⁺-Bipyridinedicarboxamide Complexes

Anna S. Miroshnichenko

Konstantin V. Deriabin

and

Polymers 2022, 14(24), 5540; https://doi.org/10.3390/polym14245540 - 18 Dec 2022

Cited by 1 | Viewed by 1040

Abstract

Photoluminescent lanthanide complexes of Eu³⁺ and Tb³⁺ as central atoms and N⁶,N⁶’-diisopropyl-[2,2′-bipyridine]-6,6′-dicarboxamide as ligand were synthesized. The structure of these complexes was established by single-crystal X-ray diffraction, mass spectrometry, ¹H and ¹³C nuclear magnetic resonance, ultraviolet-visible, infrared spectroscopy, and thermogravimetry. Bipyridinic ligands provide formation of coordinatively saturated complexes of lanthanide ions and strong photoluminescence (PL). The Eu³⁺- and Tb³⁺-complexes exhibit PL emission in the red and green regions observed at a 340 nm excitation. The quantum yield for the complexes was revealed to be 36.5 and 12.6% for Tb³⁺- and Eu³⁺-complexes, respectively. These lanthanide compounds could be employed as photoluminescent solid-state compounds and as emitting fillers in polymer (for example, polyethylene glycol) photoluminescent materials. Full article

(This article belongs to the Special Issue Self-Healing Polymers)

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