Shape memory polymer-based thermal-responsive circuit switches

Jia, Jichen; Wang, Junjun; Wang, Yapei

doi:10.1039/d3tc00848g

Cited by 6 publications

(3 citation statements)

References 102 publications

(162 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4−6 The ability for programmable deformation provides SMP with advantages for diverse applications, including smart actuators, biomedicine, electronic devices, and aerospace. However, materials with exceptional deformation capabilities, such as polylactic acid, 7 polyurethane, 8 and polycaprolactone, 9 often show weak mechanical properties and inadequate thermal stability. This limitation hinders their application in engineering structures and aerospace.…”

Section: Introductionmentioning

confidence: 99%

“…The rigid region comprises rigid chain segments, chain entanglements, crystalline phases, and cross-linking points that contribute to structural stability and permanent shape recovery. − The ability for programmable deformation provides SMP with advantages for diverse applications, including smart actuators, biomedicine, electronic devices, and aerospace. However, materials with exceptional deformation capabilities, such as polylactic acid, polyurethane, and polycaprolactone, often show weak mechanical properties and inadequate thermal stability. This limitation hinders their application in engineering structures and aerospace. , For example, Li et al developed shape-memory polyurethaneuric acid elastomers by copolymerizing polycaprolactone and poly(ethylene glycol) with an aniline trimer.…”

Section: Introductionmentioning

confidence: 99%

“…8 MPa and Young's modulus from 493 to 966 MPa. Additionally, the material exhibits exceptional thermal stability and a high shape memory fixation rate of 97%.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Self-Healing, Recyclable, and Solvent Resistant Poly(aryl ether nitrile) Triple Shape Memory Thermosets Cross-Linked with Dynamic Boroxines

He,

Yang,

Lai

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Shape memory polymers, which possess exceptional mechanical properties, ease of processing, facile recycling capabilities, and excellent self-healing properties, are critically needed in fields such as smart actuators, biomedicine, electronic devices, and aerospace; yet they remain a challenging research topic. In this study, we propose an innovative approach to overcome these challenges by incorporating soft segments/activation switching monomers and boroxines into poly(aryl ether nitrile) (PEN). The resulting PEN−PEG-B 3 O exhibits high recovery (95%) and high immobilization (97%) while enabling triple shape memory functionality. Furthermore, the rigid structure of PEN contributes significantly to the material's strength, with a tensile strength of 51.6 MPa anhibits high recovery (95%) and high immobilization (97%) while enabling triple shape memory functionality. Furthermore, the rigid structure of PEN contributes significantly to the material's strength, with a tensile strength of 51.6 MPa and the Young's modulus of 681.7 MPa. Owing to the dynamic nature of the boroxine linkages, PEN−PEG-B 3 O 3 thermosets can be processed in various shapes and can be conveniently reprocessed using a mixed solvent of DMF and ethanol (DMF/EtOH = 8/2, v/v) while maintaining their original mechanical strength. Additionally, these thermosets demonstrate remarkable stability against solvents; they maintain their performance after being immersed in acidic, alkaline, and saline solutions for 90 days.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-Healing, Recyclable, and Solvent Resistant Poly(aryl ether nitrile) Triple Shape Memory Thermosets Cross-Linked with Dynamic Boroxines

He,

Yang,

Lai

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

Colorless, transparent, and shape memory polyurethane networks with high strength and recyclability

Ma,

Yue,

Huang

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

The traditional thermoset polyurethanes (PUs) can be recycled through the dynamic carbamate bonds under specific conditions. However, there is limited research on the structural evolution and property changes of these PUs before and after recycling. Herein, we designed and fabricated a thermoset polyurethane network (PCU) using polyhexamethylene carbonate diol (PHMC‐diol) as soft segments, and isophorone diisocyanate (IPDI) and glycerol (GLY) as hard segments. Through careful formulation design, the PCU demonstrated colorless transparency (with up to 86% transmission), shape memory properties, and reprocessing capabilities, all achieved without introducing other dynamic covalent bonds. Furthermore, the PCU exhibited excellent mechanical properties, boasting a tensile strength of 59.2 ± 3.7 MPa and the elongation at break of 674.8 ± 37.3%. Of particular interest, the PCU samples displayed solid‐state plasticity and impressive shape memory performance, with shape fixity and recovery ratios exceeding 90%. Leveraging the combination of solid‐state plasticity and shape memory, the PCU samples demonstrated the ability to achieve arbitrary shape manipulations. Upon recycling, it was observed that the cross‐linking density of the PCU samples decreased, resulting in the formation of byproducts and subsequently leading to a reduction in tensile strength. Nonetheless, the PCU samples prepared in this study exhibit potential as thermadapt shape memory and recyclable materials.

show abstract

Application of interpolated double network model for carbon nanotube composites in electrothermal shape memory behaviors

Fu,

Yan,

Zhang

et al. 2024

Acta Mech. Sin.

View full text Add to dashboard Cite

Shape memory polymer-based thermal-responsive circuit switches

Abstract: Accidents and disasters caused by the abnormal high temperature, such as fire accidents and spontaneous combustion phenomenons have frequently hit the headlines in the recent years. Those enourmous losses led...

Cited by 6 publications

References 102 publications

Self-Healing, Recyclable, and Solvent Resistant Poly(aryl ether nitrile) Triple Shape Memory Thermosets Cross-Linked with Dynamic Boroxines

Self-Healing, Recyclable, and Solvent Resistant Poly(aryl ether nitrile) Triple Shape Memory Thermosets Cross-Linked with Dynamic Boroxines

Colorless, transparent, and shape memory polyurethane networks with high strength and recyclability

Application of interpolated double network model for carbon nanotube composites in electrothermal shape memory behaviors

Contact Info

Product

Resources

About