Strong and tough self-healing elastomers enabled by dual reversible networks formed by ionic interactions and dynamic covalent bonds

Peng, Yan; Yang, Yi; Wu, Qi; Wang, Shixiang; Huang, Guangsu; Wu, Jinrong

doi:10.1016/j.polymer.2018.09.038

Cited by 89 publications

(66 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other non-covalent systems were used as ionic interactions combined with DA chemistry in an acrylic copolymer. 211 In the last year, metal-ligand coordination has also been combined with different covalent systems and matrices such as ENR (with boron-based bonds 212 ), PDMS (with imine bonds 213 ), PU (with DA chemistry 214 ) and PUU (with disulfide bonds 215 ), but with very different results that limit establishing yet a clear trend for these combinations.…”

Section: Combined Non-covalent/covalent Systemsmentioning

confidence: 99%

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Combined Non-covalent/covalent Systemsmentioning

confidence: 99%

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Lower mobility is disadvantageous at lower temperatures, whereas lower mobility benefits the viscoelastic properties at elevated temperatures and in the melt state 25 . In addition to the described studies of polyethylenebased ionomers, only a few other ionomers with highmechanical stability have been investigated in terms of their self-healing ability [29][30][31][32][33] . For example, Bose et al 34,35 performed extensive rheological studies for poly(butyl acrylate)-based ionomers and found correlations between their network dynamics and self-healing behavior.…”

Section: Introductionmentioning

confidence: 99%

Quantification of the scratch-healing efficiency for novel zwitterionic polymers

et al. 2020

View full text Add to dashboard Cite

In this work, we present a new strategy to engineer novel self-healing ionomers, namely, zwitterionic polymers, and a comprehensive analysis of their mechanical, viscoelastic, and scratch-healing properties. This new method enables reproducible damage of the polymer surfaces, calculation of the scratch volume through tactile profile scans, and quantification of the self-healing efficiency. Based on the results of the scratch tests and complementary rheology, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and hardness tests, new trends, and structure-property relationships can be identified.

show abstract

“…Non‐metallic cations can also be introduced to rubber matrix to form ionic crosslinks. When some nitrogen‐containing compounds, such as alkylimidazoles, 4‐ethyl‐4‐methyl morpholinium methylcarbonate, and 2‐(dimethyl amino)‐ethyl methacrylate were introduced into poly(isobutylene‐co‐isoprene) rubber or acrylate rubber, excellent mechanical and self‐healing performance were obtained, for example, a healed tensile strength of 10.7 MPa (healing efficiency of 74%) and a elongation at break of 1040% (healing efficiency of 98%) . In addition to forming an ionic crosslinking network, metal ions can also be utilized to form supramolecular networks through metal–ligand interactions in rubber matrix.…”

Section: Introductionmentioning

confidence: 99%

Shape memory and self‐healing behavior of styrene–butadiene–styrene/ethylene‐methacrylic acid copolymer (SBS/EMAA) elastomers containing ionic interactions

Zhou

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Ionic interactions were introduced to styrene-butadiene-styrene (SBS) through blending with ethylene-methacrylic acid copolymer (EMAA) and zinc oxide (ZnO), and a following in situ neutralization reaction between the carboxyl groups of EMAA and ZnO. The resultant SBS/EMAA (60/40 wt %) blends containing zinc carboxylate crosslinks exhibited high modulus and strong long-time relaxation characteristics. With 74% of the carboxyl groups neutralized (zinc cation fraction of 1.7 wt %), the tensile strength of the blends was increased from 14.6 to 16.6 MPa, and the stress at 100% extension was increased from 4.8 to 8.1 MPa. The melting temperature of EMAA was utilized to trigger the shape memory behavior of SBS/EMAA, and the reversible ionic bonds endowed SBS with better shape memory and self-healing performance. The shape-fixing ratio and recovery ratio of SBS were increased from 90.2 and 56.5% up to 93.3 and 84.2%, respectively. When the cut surfaces of SBS/EMAA/Zn samples were brought back into contact and annealed at 100 C for 1 h, the strength and the elongation at break were recovered by 36 and 21%, respectively. This introduction of ionic interactions through the EMAA-ZnO neutralization reactions imparts new functions to SBS thermoplastic elastomers.

show abstract

Strong and tough self-healing elastomers enabled by dual reversible networks formed by ionic interactions and dynamic covalent bonds

Cited by 89 publications

References 40 publications

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

Quantification of the scratch-healing efficiency for novel zwitterionic polymers

Shape memory and self‐healing behavior of styrene–butadiene–styrene/ethylene‐methacrylic acid copolymer (SBS/EMAA) elastomers containing ionic interactions

Contact Info

Product

Resources

About