Self-Healing Hydrogels Formed via Hydrophobic Interactions

Okay, Oğuz

doi:10.1007/978-3-319-15404-6_3

Cited by 50 publications

(25 citation statements)

References 103 publications

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“…In past years, synergetic and intense supramolecular interactions were found to be able to offer higher mechanical strength than covalent crosslinking in hydrogels. Typical supramolecular interactions used for hydrogels fabrication include host–guest interaction, hydrophobic association, hydrogen bonding, π‐π stacking, electrostatic attraction, semi‐crystallization, and dipole–dipole interactions …”

Section: Microstructure Design For High‐strength Hydrogelsmentioning

confidence: 99%

High‐strength hydrogels: Microstructure design, characterization and applications

Hua

Fei

2018

J Polym Sci B Polym Phys

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Hydrogels are a class of polymeric network materials embedded in a water-rich environment. They are widely applied in drug delivery, actuator, and sensor. However, conventional hydrogels encountered limits from their poor mechanical property. Recent researches in hydrogels have been focusing on mechanical enhancement, ranging from design of microstructures to adjustment of compositions in hydrogels. Here, the design and fabrication strategies of high-strength hydrogels, as well as major progress in their typical strength-support applications are systemically reviewed.

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Section: Microstructure Design For High‐strength Hydrogelsmentioning

confidence: 99%

High‐strength hydrogels: Microstructure design, characterization and applications

Hua

Fei

2018

J Polym Sci B Polym Phys

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“…Anthamatten reviews hydrogen-bonding interactions to form soft solid polymer materials with network architectures, including, glasses, melts, and elastomers [302]. Okay adds a perspective on the design, mechanics, and self-healing of hydrogels formed via hydrophobic interactions, with a particular emphasis on the role of surfactant micelles within the gels [303]. The development of donoracceptor π-π stacking interactions as transient cross-links in self-healable supramolecular polymer networks is discussed by Greenland and Hayes [304].…”

Section: Discussionmentioning

confidence: 99%

Supramolecular Polymer Networks: Preparation, Properties, and Potential

Rossow

Seiffert

2015

Advances in Polymer Science

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“…Inspired by natural living materials, scientists have developed synthetic self-healing polymers capable of repairing fractures or damages at the microscopic scale and restoring mechanical strengths at the macroscopic scale [1][2][3] . The healing capability usually relies on extrinsic curing-agent encapsulates released upon fractures 4,5 or on intrinsic dynamic bonds, such as dynamic covalent bonds 6,7 and physical bonds [8][9][10][11][12][13][14][15] , that autonomously reform after fracture-induced dissociations. Thanks to their healing capability, these polymers have enabled a wide range of applications, such as flexible electronics [16][17][18] , energy transducers 12,19 , soft robotics 20,21 , lithium batteries 22 , water membranes 23 , and biomedical devices 24 .…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of self-healing elastomers

et al. 2019

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Nature excels in both self-healing and 3D shaping; for example, self-healable human organs feature functional geometries and microstructures. However, tailoring man-made self-healing materials into complex structures faces substantial challenges. Here, we report a paradigm of photopolymerization-based additive manufacturing of selfhealable elastomer structures with free-form architectures. The paradigm relies on a molecularly designed photoelastomer ink with both thiol and disulfide groups, where the former facilitates a thiol-ene photopolymerization during the additive manufacturing process and the latter enables a disulfide metathesis reaction during the selfhealing process. We find that the competition between the thiol and disulfide groups governs the photocuring rate and self-healing efficiency of the photoelastomer. The self-healing behavior of the photoelastomer is understood with a theoretical model that agrees well with the experimental results. With projection microstereolithography systems, we demonstrate rapid additive manufacturing of single-and multimaterial self-healable structures for 3D soft actuators, multiphase composites, and architected electronics. Compatible with various photopolymerization-based additive manufacturing systems, the photoelastomer is expected to open promising avenues for fabricating structures where free-form architectures and efficient self-healing are both desirable.

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Self-Healing Hydrogels Formed via Hydrophobic Interactions

Cited by 50 publications

References 103 publications

High‐strength hydrogels: Microstructure design, characterization and applications

High‐strength hydrogels: Microstructure design, characterization and applications

Supramolecular Polymer Networks: Preparation, Properties, and Potential

Additive manufacturing of self-healing elastomers

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