Shape memory hydrogels with remodelable permanent shapes and programmable cold-induced shape recovery behavior

Wu, Xinjun; Guan, Xin; Chen, Shushu; Jia, Jiangpeng; Chen, Chongyi; Zhang, Jiawei; Zhao, Chuanzhuang

doi:10.1039/d3sm01429k

Soft Matter

2024

DOI: 10.1039/d3sm01429k

|View full text |Cite

Shape memory hydrogels with remodelable permanent shapes and programmable cold-induced shape recovery behavior

Xinjun Wu,

Xin Guan,

Shushu Chen

et al.

Abstract: A self-healing hydrogel that can be stiffened with heat was designed. The synergy of self-healing and thermal hardening properties generated several interesting functions, such as programmable shape memory, impact protection and recyclability.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article3

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

Yu,

Zhang,

Chen

et al. 2024

Advanced Optical Materials

Self Cite

View full text Add to dashboard Cite

Organic photoluminescent materials with room‐temperature phosphorescence (RTP) are of great interest, yet achieving RTP in hydrogels faces challenges due to water‐quenching effects. In this study, a straightforward method is presented to achieve RTP hydrogel using a self‐healing and salt‐hardening hydrogel. The hydrogel is synthesized by polymerizing acrylic acid (AA) with diethylenetriamine (DETA) as the dynamic crosslinker. The poly(acrylic acid)/DETA hydrogel could achieve an afterglow lasting 1.6 s after soaking with NaBr solution. The salt‐enhanced hydrophobic aggregation of the hydrogel network promotes the clustering of carboxyl groups and oxygen atoms, resulting in a rigid environment that suppresses nonradioactive transitions and leads to the manifestation of RTP. Additionally, the dynamic association of AA‐DETA allows the freeze‐dried hydrogel powder to be blended with various hydrophobic dyes, leading to a remodelable hydrogel with delayed emission of multiple colors. In general, by combining salt‐hardening property with self‐healing property together, a RTP hydrogel platform that can be facilely loaded with various organic dyes is proposed.

show abstract

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

Yu,

Zhang,

Chen

et al. 2024

Advanced Optical Materials

Self Cite

View full text Add to dashboard Cite

show abstract

Programmable materials: Current trends, challenges, and perspectives

Scalet

2024

Applied Materials Today

View full text Add to dashboard Cite

Methyl Matters: Molecular Regulation of the Soft-to-Rigid Transition of Shape Memory Hydrogels for Programmable Deformation

Yuan,

Jin,

et al. 2024

Macromolecules

View full text Add to dashboard Cite

The properties of intelligent polymeric materials are essentially determined by their chemical structures. Shape memory hydrogels that utilize hydrophobic aggregation at elevated temperatures to stabilize temporary shapes, the association of polymer networks is similar to that of thermoresponsive polymers. To realize a precise control on the shape memory function of these materials and broaden their practical applications, it is essential to build up a structure–property relationship on a molecular level. In this study, we fabricated a series of poly(acrylic acid–methacrylic acid)/Ca(CH3COO)2 shape memory hydrogels with cooling-induced shape transformation behavior. The results showed that the incorporation of α-methyl groups would restrict the hydrophobic aggregation of hydrogel networks, and the soft-to-stiff transition temperature of the hydrogels would shift to elevated temperatures with the increasing density of α-methyl groups. Therefore, the shape recovery process could be regulated by adjusting the association degree of the polymer networks. Finally, the hydrogels were explored as smart capsules with sequential drug delivery capacity and as dredging devices capable of removing thrombus. This study reveals the influence of α-methyl groups on the association dynamics of the poly(acrylic acid–methacrylic acid)/Ca(CH3COO)2 hydrogels, which would promote the design of novel shape memory polymers guided by the relationship between chemical structure and properties.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Shape memory hydrogels with remodelable permanent shapes and programmable cold-induced shape recovery behavior

Abstract: A self-healing hydrogel that can be stiffened with heat was designed. The synergy of self-healing and thermal hardening properties generated several interesting functions, such as programmable shape memory, impact protection and recyclability.

Cited by 3 publications

References 46 publications

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

Programmable materials: Current trends, challenges, and perspectives

Methyl Matters: Molecular Regulation of the Soft-to-Rigid Transition of Shape Memory Hydrogels for Programmable Deformation

Contact Info

Product

Resources

About