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Gels
Special Issues
Development of Self-Healing Gels
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Development of Self-Healing Gels

A special issue of Gels (ISSN 2310-2861).

Deadline for manuscript submissions: closed (30 June 2015) | Viewed by 16295

Special Issue Editor

Prof. Dr. Akira Harada

E-Mail Website
Guest Editor
Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
Interests: supramolecular science of macromolecules; new methods for polymer synthesis; functionalized biomacromolecules

Special Issue Information

Dear Colleagues,

In recent years, much attention has been focused on self-healing materials. These materials provide advantages in terms of conserving resources, energy saving, and safety. Gels are generally classified as chemical gels and physical gels. It is possible for physical gels to heal themselves through intermolecular interactions, hydrogen bonds, ligand-metal bonds, and host-guest interactions. Even chemical gels, if the gels are made of dynamic covalent bonds, can self-heal. More recently, such gels have been used for selective adhesives, self-assembling, and stimuli-responsive materials.

This Special Issue will provide an international forum for researchers to discuss the most recent studies concerning the preparation of such self-healing gels and their properties. Through this Special Issue, the synthesis of these self-healing gels, and their applications for the future, will be discussed by a wide range of authors.

Prof. Dr. Akira Harada
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. Gels is an international peer-reviewed open access monthly 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 2600 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
  • gels
  • intermolecular interactions
  • hydrogen bonds
  • ligand-metal bond
  • host-guest interactions
  • dynamic covalent bond

Published Papers (2 papers)

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Research

1013 KiB  
Article
Thixotropic Supramolecular Gel Based on l-Lysine Derivatives
by Masahiro Suzuki, Yuta Hayakawa and Kenji Hanabusa
Gels 2015, 1(1), 81-93; https://doi.org/10.3390/gels1010081 - 31 Jul 2015
Cited by 12 | Viewed by 8747
Abstract
The dimer l-lysine derivatives, in which two Nα,Nε-diacyl-l-lysines were crosslinked by calcium ion, were synthesized through a simply synthetic procedure and their gelation properties were examined. These compounds functioned as an organogelator; especially, the gelators possessing both a [...] Read more.
The dimer l-lysine derivatives, in which two Nα,Nε-diacyl-l-lysines were crosslinked by calcium ion, were synthesized through a simply synthetic procedure and their gelation properties were examined. These compounds functioned as an organogelator; especially, the gelators possessing both a linear and a branched alkyl chains had the better organogelation ability and formed the thermally stable and rigid organogel. In addition, some organogels had a thixotropic property, which were responsive to a mechanical stimulus and reversibly underwent the gel–sol transition at room temperature. The thixotropic behavior was confirmed by visual contact and rheological experiments. Furthermore, it was assumed the mechanism of the thixotropic behavior. Full article
(This article belongs to the Special Issue Development of Self-Healing Gels)
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3135 KiB  
Article
Diarylbibenzofuranone-Based Dynamic Covalent Polymer Gels Prepared via Radical Polymerization and Subsequent Polymer Reaction
by Keiichi Imato, Masamichi Nishihara, Atsushi Irie, Atsushi Takahara and Hideyuki Otsuka
Gels 2015, 1(1), 58-68; https://doi.org/10.3390/gels1010058 - 03 Jul 2015
Cited by 9 | Viewed by 7107
Abstract
Diarylbibenzofuranone (DABBF) is a dynamic covalent bonding unit, which is in equilibrium with the corresponding radicals at room temperature, and polymers with DABBF linkages show notable properties such as self-healing. The preparation routes have been strictly limited, however, and no polymer with the [...] Read more.
Diarylbibenzofuranone (DABBF) is a dynamic covalent bonding unit, which is in equilibrium with the corresponding radicals at room temperature, and polymers with DABBF linkages show notable properties such as self-healing. The preparation routes have been strictly limited, however, and no polymer with the linkages has been synthesized via radical polymerization because of the strong antioxidant activity of DABBF. Here we present a new method to prepare DABBF-containing polymers via radical polymerization of the precursor, arylbenzofuranone (ABF), and subsequent polymer reaction, dimerization of ABF units in the linear polymers. Polymer gels cross-linked by DABBF linkages were obtained against the relatively strong antioxidant activity of ABF and showed dynamic network reorganization at room temperature. Full article
(This article belongs to the Special Issue Development of Self-Healing Gels)
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