scholarly journals Time-temperature equivalence in a PVA dual cross-link self-healing hydrogel

2018 ◽  
Vol 62 (4) ◽  
pp. 991-1000 ◽  
Author(s):  
Mincong Liu ◽  
Jingyi Guo ◽  
Chung-Yuen Hui ◽  
Costantino Creton ◽  
Tetsuhara Narita ◽  
...  
Keyword(s):  
Self Healing ◽  
Cross Link

The influence of furanyl monomer on the self-healing polyurethanes by reverse Diels-Alder cross-link

2018 ◽  
Vol 30 (3) ◽  
pp. 804-807 ◽  
Author(s):  
Yunlin Pan ◽  
Xi Yu ◽  
Pengfei Yang ◽  
Junying Li ◽  
Datong Zhang ◽  
...  
Keyword(s):  
Diels Alder ◽  
The Self ◽  
Self Healing ◽  
Cross Link

Effect of cross-link density and the healing efficiency of self-healing poly(2-hydroxyethyl methacrylate) hydrogel

e-Polymers ◽  
2014 ◽  
Vol 14 (4) ◽  
pp. 289-294 ◽  
Author(s):  
Najiyyah Abdullah Sirajuddin ◽  
Mohd Suzeren Md Jamil ◽  
Muhammad Azwani Shah Mat Lazim
Keyword(s):  
Tensile Strength ◽  
Self Healing ◽  
Hydroxyethyl Methacrylate ◽  
Cross Link ◽  
Healing Efficiency ◽  
Link Density ◽  
Cross Link Density ◽  
Cross Linker ◽  
Chain Slippage ◽  
Polymerization Method

AbstractIn this study, hydrogels of poly(2-hydroxyethyl methacrylate) with different cross-link density were prepared by the free-radical polymerization method. l-Cystine, which acts as a cross-linker, was prepared at different concentrations, ranging from 0.02 to 0.08 mol/l, to identify the concentration that provided the highest mechanical strength and healing efficacy. Healing of the hydrogels was achieved by heating above their glass transition temperature. Intermolecular diffusion of the dangling chain or chain slippage led to the healing of the gels. Results showed that 0.04 mol/l of l-cystine in poly(2-hydroxyethyl methacrylate) hydrogels provided the highest ultimate tensile strength (0.780 N/mm2) and healing recovery (92%). This healing capability was also observed using optical microscopy.

Light-driven assembly of biocompatible fluorescent chitosan hydrogels with self-healing ability

2020 ◽  
Vol 8 (42) ◽  
pp. 9804-9811
Author(s):  
Olatz Guaresti ◽  
Leander Crocker ◽  
Teodoro Palomares ◽  
Ana Alonso-Varona ◽  
Arantxa Eceiza ◽  
...  
Keyword(s):  
Self Healing ◽  
Cross Link ◽  
Chitosan Derivatives ◽  
Nitrile Imine ◽  
Chitosan Hydrogels

Nitrile imine-mediated tetrazole-ene cycloaddition (NITEC) was successfully used to cross-link complementary tetrazole and maleimide chitosan derivatives into hydrogel networks using irradiation.

Time Dependent Behavior of a Dual Cross-Link Self-Healing Gel: Theory and Experiments

2014 ◽  
Vol 47 (20) ◽  
pp. 7243-7250 ◽  
Author(s):  
Rong Long ◽  
Koichi Mayumi ◽  
Costantino Creton ◽  
Tetsuharu Narita ◽  
Chung-Yuen Hui
Keyword(s):  
Time Dependent ◽  
Self Healing ◽  
Cross Link ◽  
Dependent Behavior ◽  
Theory And Experiments

Synthesis of a self-healing siloxane-based elastomer cross-linked via a furan-modified polyhedral oligomeric silsesquioxane: investigation of a thermally reversible silicon-based cross-link

2017 ◽  
Vol 8 (19) ◽  
pp. 2942-2952 ◽  
Author(s):  
Amin Nasresfahani ◽  
Paul M. Zelisko
Keyword(s):  
Polyhedral Oligomeric Silsesquioxane ◽  
Self Healing ◽  
Cross Link ◽  
Elastomeric Material ◽  
Temperature Controlled ◽  
Silicon Based ◽  
Oligomeric Silsesquioxane

We have successfully prepared an elastomeric material exhibiting excellent temperature-controlled self-healing characteristics.

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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