Self‐Healing Polycaprolactone Networks through Thermo‐Induced Reversible Disulfide Bond Formation

Zhang, Liangdong; Qiu, Teng; Zhu, Zhiqiang; Guo, Longhai; Li, Xiaoyu

doi:10.1002/marc.201800121

Cited by 49 publications

(26 citation statements)

References 24 publications

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“…Besides the extrinsic self-healing technique, reversible bonds are also attractive for obtaining a self-healable material. In a work presented by Zhang et al [227], smart poly(caprolactone) (PCL) networks were obtained by blending a disulfide monomer and a branched PCL cured with thiols via a thiol-ene reaction. The materials obtained were able to repair mechanical damages efficiently, and they also present shape memory, reprocessability and degradability.…”

Section: Advanced Technological Applications Of Thermosets Obtained Bmentioning

confidence: 99%

The Use of Click-Type Reactions in the Preparation of Thermosets

et al. 2020

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Click chemistry has emerged as an effective polymerization method to obtain thermosets with enhanced properties for advanced applications. In this article, commonly used click reactions have been reviewed, highlighting their advantages in obtaining homogeneous polymer networks. The basic concepts necessary to understand network formation via click reactions, together with their main characteristics, are explained comprehensively. Some of the advanced applications of thermosets obtained by this methodology are also reviewed.

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Section: Advanced Technological Applications Of Thermosets Obtained Bmentioning

confidence: 99%

The Use of Click-Type Reactions in the Preparation of Thermosets

et al. 2020

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“…Hydrogels are similar to the structure and function of the extracellular matrix, which can absorb and retain a large amount of water without dissolving in a swelling state [ 2 ]. Therefore, hydrogels have long been widely used in tissue repair, drug delivery, and other fields [ 3 , 4 , 5 ]. Due to the complex dynamic physiological and mechanical environment inside the human body, the hydrogel will appear with minor defects after implantation.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Self-Healing Hydrogels and Application in Tissue Engineering

Liang

Yuan

et al. 2022

Polymers

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Self-healing hydrogels and traditional hydrogels both have three-dimensional polymeric networks that are capable of absorbing and retaining a large amount of water. Self-healing hydrogels can heal and restore damage automatically, and they can avoid premature failure of hydrogels caused by mechanical damage after implantation. The formation mechanism of self-healing hydrogels and the factors that hydrogels can load are various. Researchers can design hydrogels to meet the needs of different tissues through the diversity of hydrogels Therefore, it is necessary to summarize different self-healing mechanisms and different factors to achieve different functions. Here, we briefly reviewed the hydrogels designed by researchers in recent years according to the self-healing mechanism of water coagulation. Then, the factors for different functions of self-healing hydrogels in different tissues were statistically analyzed. We hope our work can provide effective support for researchers in the design process of self-healing hydrogel.

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“…Intrinsic self-healing is achieved through reversible chemistry under various stimuli, such as thermal changes [7][8][9], light exposure [10,11], pH changes [12,13], and adding reducing or oxidizing agents [14], as well as through dynamic hydrogen bonds (H-bonds) [15][16][17][18][19], ionic interactions [20,21], metal-ligand coordination [22][23][24][25], and reversible covalent bonds [26][27][28][29][30]. Because they do not necessitate a complex manufacturing process, intrinsic self-healing systems are more suitable for applications such as rubber [31,32], coatings [33], adhesives [34], shape-memory materials [35,36], and electronic skins [37][38][39]. One common polymer widely used in such materials is polyurethane (PUR).…”

Section: Introductionmentioning

confidence: 99%

Achievement of Both Mechanical Properties and Intrinsic Self-Healing under Body Temperature in Polyurethane Elastomers: A Synthesis Strategy from Waterborne Polymers

et al. 2020

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Inspired by the growing demand for smart and environmentally friendly polymer materials, we employed 2,2′-disulfanediyldianiline (22DTDA) as a chain extender to synthesize a waterborne polyurethane (WPUR). Due to the ortho-substituted structure of the aromatic disulfide, the urea moieties formed a unique microphase structure in the WPUR, its mechanical strength was enhanced more 180 times relative to that of the material prepared without 22DTDA, and excellent self-healing abilities at body temperature in air or under ultrasound in water were obtained. If the self-healing process was carried out at 37 °C, 50 °C or under ultrasound, the ultimate tensile strength and elongation at break of the healed film could reach 13.8 MPa and 1150%, 15.4 MPa and 1215%, or 16 MPa and 1056%, respectively. Moreover, the WPUR films could be re-healed at the same fracture location over three cutting–healing cycles, and the recovery rates of the tensile strength and elongation at break remained almost constant throughout these cycles.

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Self‐Healing Polycaprolactone Networks through Thermo‐Induced Reversible Disulfide Bond Formation

Cited by 49 publications

References 24 publications

The Use of Click-Type Reactions in the Preparation of Thermosets

The Use of Click-Type Reactions in the Preparation of Thermosets

Mechanism of Self-Healing Hydrogels and Application in Tissue Engineering

Achievement of Both Mechanical Properties and Intrinsic Self-Healing under Body Temperature in Polyurethane Elastomers: A Synthesis Strategy from Waterborne Polymers

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