Chitosan derivative-based self-healable hydrogels with enhanced mechanical properties by high-density dynamic ionic interactions

Yuan, Ningxiao; Xu, Lu; Xu, Bo; Zhao, Jianhao; Rong, Jian

doi:10.1016/j.carbpol.2018.03.071

Cited by 48 publications

(31 citation statements)

References 36 publications

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“…Numerous ways have been adopted to prepare self-healable hydrogel electrolytes, such as hydrogen bonding, ionic interactions, polyion-complexation, polyampholyte, and hydrophobic association [198][199][200][201]. Natural polymers, synthetic polymers, and both types of polymer combine via physical interactions to form hydrogel electrolytes.…”

Section: Self-healing Properties Of Polymer Hydrogel Electrolytementioning

confidence: 99%

Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their Applications

et al. 2020

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In the present review, we focused on the fundamental concepts of hydrogels—classification, the polymers involved, synthesis methods, types of hydrogels, properties, and applications of the hydrogel. Hydrogels can be synthesized from natural polymers, synthetic polymers, polymerizable synthetic monomers, and a combination of natural and synthetic polymers. Synthesis of hydrogels involves physical, chemical, and hybrid bonding. The bonding is formed via different routes, such as solution casting, solution mixing, bulk polymerization, free radical mechanism, radiation method, and interpenetrating network formation. The synthesized hydrogels have significant properties, such as mechanical strength, biocompatibility, biodegradability, swellability, and stimuli sensitivity. These properties are substantial for electrochemical and biomedical applications. Furthermore, this review emphasizes flexible and self-healable hydrogels as electrolytes for energy storage and energy conversion applications. Insufficient adhesiveness (less interfacial interaction) between electrodes and electrolytes and mechanical strength pose serious challenges, such as delamination of the supercapacitors, batteries, and solar cells. Owing to smart and aqueous hydrogels, robust mechanical strength, adhesiveness, stretchability, strain sensitivity, and self-healability are the critical factors that can identify the reliability and robustness of the energy storage and conversion devices. These devices are highly efficient and convenient for smart, light-weight, foldable electronics and modern pollution-free transportation in the current decade.

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Section: Self-healing Properties Of Polymer Hydrogel Electrolytementioning

confidence: 99%

Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their Applications

et al. 2020

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“…Yuan et al used the same synthesis method to prepare PAA/cationic chitosan blends with high conductivity and self-healing characteristics. 124 Semiinterpenetrating networks (semi-IPN) can be further designed through the same procedure to obtain even stiffer hydrogels. Banerjee et al thereby designed semi-IPN with self-healing and shape memory behaviors as well as electrical actuation depending on the hydrogen-to-ionic bonding ratio within the materials.…”

Section: Ionic Hydrogelsmentioning

confidence: 99%

A comprehensive review of the structures and properties of ionic polymeric materials

et al. 2020

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“…The tensile strength and elongation at break increase as the self-healing time increases, and the tensile strength and elongation at break at 48 h could reach 281.0 KPa and 10.0 mm/mm, respectively. Yuan et al [24] also reported that the increase time and temperature contributed to the improvement of self-healing ability, which may be attributed to the enhanced mobility of the polymer chains at longer times and higher temperatures. To deeply analyze the self-healing properties of P(AAc- co -Am)/PVA double network hydrogels, the self-healing efficiency was calculated by the ratio of the tensile strength of the self-healing sample to the tensile strength of the original sample.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, many researchers [20,21,22] have begun to focus on the construction of double network hydrogels with self-healing property. The self-healing property of hydrogels is primary dependent on various dynamically reversible covalent, or non-covalent, such as ionic interactions [23,24] hydrogen bonding [25], hydrophobic interactions [26], host-guest interactions [27], metal-ligand interactions [28], etc. Agar/PAMAAc double network gels were synthesized by introduction of ionic coordination interaction in the second network and it was found that the double network hydrogels show extremely high mechanical properties, fast self-recovery and excellent fatigue resistance properties [29].…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Poly(acrylic acid-co-acrylamide)/Poly(vinyl alcohol) Double Network Hydrogels with Tunable Mechanics and High Self-healing Performance

Jing

Liang

et al. 2019

Polymers

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We proposed a novel strategy in the fabrication of biodegradable poly(acrylic acid-co-acrylamide)/poly(vinyl alcohol) (P(AAc-co-Am)/PVA) double network (DN) hydrogels with good mechanical and self-healing properties. In the DN hydrogel system, P(AAc-co-Am) polymers form a network through the ionic coordinates between –COO– and Fe3+ and hydrogen bonding between –COOH and –CONH2, while another network is fabricated by the complexation between PVA and borax. The influences of the composition on the rheological behaviors and mechanical properties of the synthesized DN hydrogels were investigated. The rheological measurements revealed that the viscoelasticity and stiffness of the P(AAc-co-Am)/PVA DN hydrogels increase as the acrylamide and Fe3+ concentrations increase. At 0.05 mmol of Fe3+ and 50% of acrylamide, tensile strength and elongation at break of P(AAc-co-Am)/PVA DN hydrogels could reach 329.5 KPa and 12.9 mm/mm, respectively. These properties arise from the dynamic reversible bonds existed in the P(AAc-co-Am)/PVA DN hydrogels. These reversible bonds also give good self-healing properties, and the maximum self-healing efficiency of P(AAc-co-Am)/PVA DN hydrogels is up to 96.4%. The degradation test of synthesized DN hydrogels was also conducted under simulated physiological conditions and the weight loss could reach 74% in the simulated intestinal fluid. According to the results presented here, the synthesized P(AAc-co-Am)/PVA DN hydrogels have a potential application prospect in various biomedical fields.

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Chitosan derivative-based self-healable hydrogels with enhanced mechanical properties by high-density dynamic ionic interactions

Cited by 48 publications

References 36 publications

Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their Applications

Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their Applications

A comprehensive review of the structures and properties of ionic polymeric materials

Biodegradable Poly(acrylic acid-co-acrylamide)/Poly(vinyl alcohol) Double Network Hydrogels with Tunable Mechanics and High Self-healing Performance

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