Structure and Properties of Functional Hydrogels (2nd Edition)

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Analysis and Characterization".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 1703

Special Issue Editors


E-Mail Website
Guest Editor
State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China
Interests: hydrogels; polymer physics; soft materials; biodegradable materials
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
Interests: hydrogels; ionogels; polymer composites; stimuli-responsive polymers
Special Issues, Collections and Topics in MDPI journals
Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
Interests: polymer gel; functional material; fracture mechanics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
State Key Lab for Strength and Vibration of Mechanical Structures, Department of Engineering Mechanics, Xi’an Jiaotong University, Xi’an 710049, China
Interests: gels; soft materials; mechanical properties; soft electronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is dedicated to developing new functional hydrogels with unique properties, original designs and a hierarchical structure.

Hydrogels, composed of a three-dimensional, cross-linked polymer network and an abundance of water, are representative soft and wet materials. The soft and wet nature of hydrogels has already allowed them to find broad applications in various fields, such as tissue engineering, drug delivery, soft actuators, and flexible electronics. However, conventional hydrogels are mechanically brittle and weak, which severely limits their scope of applications. In the past two decades, a significant volume of research has reported the successful preparation of mechanically strong and tough hydrogels via the design of structures with sacrificial bonds; that is, the sacrificial bonds can break preferentially during deformation to dissipate energy, endowing the material with high toughness. Led by these pioneering studies, attempts have been further made to construct novel structures in hydrogels, and subsequently, various hydrogels with special properties (e.g., anti-fracture, self-healing, adhesive, anti-fatigue, and anti-freezing) have gradually emerged, thus greatly enriching the application prospects of hydrogels.

The properties of hydrogels are highly dependent on their structures. Interestingly, functional hydrogels usually possess exquisite hierarchical structures at different scales, for example, at the nano-, micro-, meso-, and macro-scale. Understanding the structure–property relationship in hydrogels is vital for their functions and applications. Hence, within this topic, we aim to share state-of-the-art advances in the development of functional hydrogels with excellent properties with a hierarchically structural design and expect to provide a powerful paradigm for developing novel functional hydrogels. We sincerely welcome submissions in this exciting field and look forward to presenting these new works.

Dr. Chengtao Yu
Dr. Xiaohua Chang
Dr. Yong Zheng
Prof. Dr. Jian Hu
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. 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

  • functional hydrogels
  • hierarchical structure
  • multiscale structure
  • structure–property relationship
  • mechanical property

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

17 pages, 4182 KiB  
Article
Comparative Analysis of Hydrogel Adsorption/Desorption with and without Surfactants
by Salam Abdulla Dhahir, Auda Jabbar Braihi and Salih Abbas Habeeb
Gels 2024, 10(4), 251; https://doi.org/10.3390/gels10040251 - 8 Apr 2024
Cited by 1 | Viewed by 1510
Abstract
In this particular study, a hydrogel known as SAP-1 was synthesized through the grafting of acrylic acid-co-acrylamide onto pullulan, resulting in the creation of Pul-g-Poly (acrylic acid-co-acrylamide). Additionally, a sponge hydrogel named SAP-2 was prepared by incorporating the surfactant sodium dodecyl benzene sulfonate [...] Read more.
In this particular study, a hydrogel known as SAP-1 was synthesized through the grafting of acrylic acid-co-acrylamide onto pullulan, resulting in the creation of Pul-g-Poly (acrylic acid-co-acrylamide). Additionally, a sponge hydrogel named SAP-2 was prepared by incorporating the surfactant sodium dodecyl benzene sulfonate (SDBS) into the hydrogel through free radical solution polymerization. To gain further insight into the composition and properties of the hydrogels, various techniques, such as Fourier transform infrared spectroscopy, hydrogen nuclear magnetic resonance (1H NMR), atomic absorption spectroscopy, and field emission scanning electron microscopy (FE-SEM), were employed. Conversely, the absorption kinetics and the equilibrium capacities of the prepared hydrogels were investigated and analyzed. The outcomes of the investigation indicated that each of the synthesized hydrogels exhibited considerable efficacy as adsorbents for cadmium (II), copper (II), and nickel (II) ions. In particular, SAP-2 gel displayed a remarkable cadmium (II) ion absorption ability, with a rate of 190.72 mg/g. Following closely, SAP-1 gel demonstrated the ability to absorb cadmium (II) ions at a rate of 146.9 mg/g and copper (II) ions at a rate of 154 mg/g. Notably, SAP-2 hydrogel demonstrated the ability to repeat the adsorption–desorption cycles three times for cadmium (II) ions, resulting in absorption capacities of 190.72 mg/g, 100.43 mg/g, and 19.64 mg/g for the first, second, and third cycles, respectively. Thus, based on the abovementioned results, it can be concluded that all the synthesized hydrogels possess promising potential as suitable candidates for the adsorption and desorption of cadmium (II), copper (II), and nickel (II) ions. Full article
(This article belongs to the Special Issue Structure and Properties of Functional Hydrogels (2nd Edition))
Show Figures

Figure 1

Back to TopTop