An Intrinsic Photothermal Supramolecular Hydrogel with Robust Mechanical Strength and NIR-Responsive Shape Memory

Wang, Ruyue1; Chen, Xingxing2; Cheng, Yilong1; Ding, Zicheng3; Ming, Xiaoqing1; Zhang, Yanfeng1

2024-07-01

10.1002/marc.202300737

MACROMOLECULAR RAPID COMMUNICATIONS   影响因子和分区

1022-1336

1521-3927

Near-infrared (NIR)-triggered shape memory hydrogels with promising mechanical strength hold immense potential in the field of biomedical applications and soft actuators. However, the optical and mechanical properties of currently reported hydrogels usually suffer from limited solubility and dispersion of commonly used photothermal additives in hydrogels, thus restricting their practical implementations. Here,, a set of NIR-responsive shape memory hydrogels synthesized by polyaddition of diisocyanate-terminated poly(ethylene glycol), imidazolidinyl urea (IU), and p-benzoquinone dioxime (BQDO) is reported. The introduction of IU, a hydrogen bond reinforcing factor, significantly enhances the mechanical properties of the hydrogels, allowing for their tunable ranges of the ultimate tensile strength (0.4-2.5 MPa), elongation at break (210-450%), and Young's modulus (190-850 kPa). The unique hydrogels exhibit an intrinsic photothermal effect because of the covalently incorporated photothermal moiety (BQDO), and the photothermal supramolecular hydrogel shows controllable shape memory capabilities characterized by rapid recovery speed and high recovery ratio (>90%). This design provides new possibilities for applying shape memory hydrogels in the field of soft actuators.

hydrogel hydrogen bond nir-responsive polyurethane shape memory

SCI ; EI

英语

其他

National Natural Science Foundation of China["NSFC 52173139","52322309","22205190","52173079"] ; National Key R&D Program of China[2019YFA0706801] ; Fundamental Research Funds for the Central Universities["xtr052023001","xzy012023037"] ; Shaanxi Provincial Natural Science Basic Research Program-Shaanxi Coal Joint Fund[2021JLM-40]

Polymer Science

Polymer Science

WOS:001193686700001

WILEY-V C H VERLAG GMBH

20241315829156

Additives ; Elastic moduli ; Hydrogels ; Infrared devices ; Mechanical actuators ; Medical applications ; Polyethylene glycols ; Supramolecular chemistry ; Tensile strength ; Urea

Control Equipment:732.1 ; Colloid Chemistry:801.3 ; Physical Chemistry:801.4 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1 ; Materials Science:951

CHEMISTRY

Web of Science

1.Xi An Jiao Tong Univ, Sch Chem, Xian 710049, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Shaanxi Normal Univ, Inst Adv Energy Mat, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol,Shaanxi Key La, Xian 710119, Peoples R China

Wang, Ruyue,Chen, Xingxing,Cheng, Yilong,et al. An Intrinsic Photothermal Supramolecular Hydrogel with Robust Mechanical Strength and NIR-Responsive Shape Memory[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2024,45(13).

Wang, Ruyue,Chen, Xingxing,Cheng, Yilong,Ding, Zicheng,Ming, Xiaoqing,&Zhang, Yanfeng.(2024).An Intrinsic Photothermal Supramolecular Hydrogel with Robust Mechanical Strength and NIR-Responsive Shape Memory.MACROMOLECULAR RAPID COMMUNICATIONS,45(13).

Wang, Ruyue,et al."An Intrinsic Photothermal Supramolecular Hydrogel with Robust Mechanical Strength and NIR-Responsive Shape Memory".MACROMOLECULAR RAPID COMMUNICATIONS 45.13(2024).