Facile access to versatile hydrogels via interface-directed frontal polymerization derived from the magnetocaloric effect

2015 ◽  
Vol 3 (33) ◽  
pp. 17351-17358 ◽  
Author(s):  
Chao Yu ◽  
Cai-Feng Wang ◽  
Su Chen
Keyword(s):  
Magnetocaloric Effect ◽  
Frontal Polymerization ◽  
Self Healing ◽  
Synthetic Pathway ◽  
Shape Changes

An interface-directed synthetic pathway is employed to offer a tractable preparation of versatile hydrogels in minutes. The resultant hydrogels show pH, thermal, electrically and chemically responsive shape changes as well as adjustable self-healing capacity.

scholarly journals Rapid synchronized fabrication of vascularized thermosets and composites

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mayank Garg ◽  
Jia En Aw ◽  
Xiang Zhang ◽  
Polette J. Centellas ◽  
Leon M. Dean ◽  
...  
Keyword(s):  
Large Scale ◽  
Capillary Flow ◽  
External Heat ◽  
Frontal Polymerization ◽  
Self Healing ◽  
Vascular Networks ◽  
Ambient Conditions ◽  
External Energy ◽  
Imaging Phantoms ◽  
Vascular Structures

AbstractBioinspired vascular networks transport heat and mass in hydrogels, microfluidic devices, self-healing and self-cooling structures, filters, and flow batteries. Lengthy, multistep fabrication processes involving solvents, external heat, and vacuum hinder large-scale application of vascular networks in structural materials. Here, we report the rapid (seconds to minutes), scalable, and synchronized fabrication of vascular thermosets and fiber-reinforced composites under ambient conditions. The exothermic frontal polymerization (FP) of a liquid or gelled resin facilitates coordinated depolymerization of an embedded sacrificial template to create host structures with high-fidelity interconnected microchannels. The chemical energy released during matrix polymerization eliminates the need for a sustained external heat source and greatly reduces external energy consumption for processing. Programming the rate of depolymerization of the sacrificial thermoplastic to match the kinetics of FP has the potential to significantly expedite the fabrication of vascular structures with extended lifetimes, microreactors, and imaging phantoms for understanding capillary flow in biological systems.

Construction of triple non-covalent interaction-based ultra-strong self-healing polymeric gels via frontal polymerization

2020 ◽  
Vol 8 (40) ◽  
pp. 14083-14091
Author(s):  
Ji-Dong Liu ◽  
Xiang-Yun Du ◽  
Cai-Feng Wang ◽  
Qing Li ◽  
Su Chen
Keyword(s):  
Frontal Polymerization ◽  
Self Healing ◽  
Smart Window ◽  
Covalent Interaction ◽  
Polymeric Gels ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Robust and self-healing polymeric gels based on triple non-covalent interactions have been constructed for generation of a new self-healing thermoresponsive smart window.

Facile synthesis of self-healing gel via magnetocaloric bottom-ignited frontal polymerization

2017 ◽  
Vol 55 (16) ◽  
pp. 2585-2593 ◽  
Author(s):  
Xiang-Yun Du ◽  
Si-Si Liu ◽  
Cai-Feng Wang ◽  
Guan Wu ◽  
Su Chen
Keyword(s):  
Frontal Polymerization ◽  
Self Healing ◽  
Facile Synthesis

A free-standing, self-healing multi-stimuli responsive gel showing cryogenic magnetic cooling

2020 ◽  
Vol 49 (38) ◽  
pp. 13487-13495
Author(s):  
Amit Adhikary ◽  
Krishna Sundar Das ◽  
Sayan Saha ◽  
Manasi Roy ◽  
Raju Mondal
Keyword(s):  
Magnetocaloric Effect ◽  
Self Healing ◽  
Stimuli Responsive ◽  
Free Standing ◽  
Magnetic Cooling

A novel Fe(iii)-based gel was synthesized where reported gel would be the first reported metallogel showing magnetocaloric effect. The metallogel also revealed outstanding colourimetric NH3 sensing with unique gel-to-gel transformation.

Frontal polymerization for smart intrinsic self-healing hydrogels and its integration with microfluidics

2018 ◽  
Vol 56 (13) ◽  
pp. 1412-1423 ◽  
Author(s):  
Nigus Mesele Tsegay ◽  
Xiang-Yun Du ◽  
Si-Si Liu ◽  
Cai-Feng Wang ◽  
Su Chen
Keyword(s):  
Frontal Polymerization ◽  
Self Healing

A facile synthesis of self-healing hydrogels toward flexible quantum dot-based luminescent solar concentrators and white LEDs

2019 ◽  
Vol 7 (35) ◽  
pp. 10988-10995
Author(s):  
Xia-Hong Hu ◽  
Ji-Dong Liu ◽  
Xiang-Yun Du ◽  
Rui Cheng ◽  
Qing Li ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Ph Sensitive ◽  
Frontal Polymerization ◽  
Self Healing ◽  
Facile Synthesis ◽  
Solar Concentrators ◽  
White Leds ◽  
Luminescent Solar Concentrators

A multifunctional hydrogel (transparent, self-healing, and pH-sensitive) towards new flexible luminescent solar concentrators is rapidly synthesized via frontal polymerization.

Frontal Polymerization-Oriented Self-Healing Hydrogels and Applications toward Temperature-Triggered Actuators

2019 ◽  
Vol 58 (9) ◽  
pp. 3885-3892 ◽  
Author(s):  
Qing Li ◽  
Ji-Dong Liu ◽  
Si-Si Liu ◽  
Cai-Feng Wang ◽  
Su Chen
Keyword(s):  
Frontal Polymerization ◽  
Self Healing

Rapid preparation of auto-healing gels with actuating behaviour

Soft Matter ◽  
2019 ◽  
Vol 15 (12) ◽  
pp. 2517-2525 ◽  
Author(s):  
Feng-Xiang Wang ◽  
Qing Li ◽  
Si-Si Liu ◽  
Xiang-Yun Du ◽  
Cai-Feng Wang ◽  
...  
Keyword(s):  
Frontal Polymerization ◽  
Self Healing ◽  
Rapid Preparation

Biphase frontal polymerization enables rapid preparation of dual-component gels with simultaneous self-healing and actuating capabilities.

Autonomous self-healing polyisoprene elastomers with high modulus and good toughness based on the synergy of dynamic ionic crosslinks and highly disordered crystals

2020 ◽  
Vol 11 (41) ◽  
pp. 6549-6558
Author(s):  
Yohei Miwa ◽  
Mayu Yamada ◽  
Yu Shinke ◽  
Shoichi Kutsumizu
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Self Healing ◽  
High Modulus ◽  
Disordered Crystals ◽  
Ionic Crosslinks

We designed a novel polyisoprene elastomer with high mechanical properties and autonomous self-healing capability at room temperature facilitated by the coexistence of dynamic ionic crosslinks and crystalline components that slowly reassembled.

Congenital self-healing histiocytosis

1982 ◽  
Vol 118 (4) ◽  
pp. 267-272 ◽  
Author(s):  
E. Bonifazi
Keyword(s):  
Self Healing
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