Chemical Communications, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
A novel supramolecular hydrogel based on water-insoluble terpyridine derivative DA-BET and surfactants is developed. The interactions between are revealed by various experiments DFT theoretical calculations.
Language: Английский
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154883 - 154883
Published: Aug. 23, 2024
Language: Английский
Citations
20
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159714 - 159714
Published: Jan. 1, 2025
Language: Английский
Citations
3
Macromolecules, Journal Year: 2025, Volume and Issue: 58(4), P. 1923 - 1934
Published: Feb. 5, 2025
Developing closed-loop recyclable thermosets and understanding their structure–property relationships are essential steps in advancing a circular materials economy. Here, we present vinylogous urethane (VU) thermoset with recyclability, synthesized through the reaction of polytetrahydrofuran bisacetoacetate (aPTHF) tris(2-aminoethyl)amine (TREN). These VU polymers exhibit high elasticity, only 3–9% residual strain observed after cyclic tensile testing at maximum 100%, depending on molecular weight aPTHF network cross-link density. The two structural parameters also allow modulation mechanical stress-relaxation properties elastomers. To investigate hydrolysis linkages within hydrophobic matrix, employed heterogeneous system using biphasic mixture HCl CDCl3. Our findings show that VUs remain stable pure water but can be dissociated under acidic conditions, dissociation rate accelerated higher temperatures and/or presence concentrations. detailed investigations indicate potential elastomers as sustainable substrates for wearable sensors. We therefore conduct case study synthesizing sensor incorporation multiwalled carbon nanotubes (MCNs) into elastomer matrix. robustly detect various movements. Moreover, treatment both neat polymer composite diethyl ether solvent allows excellent recovery (>90%) TREN (86%), without discernible damage to MCNs reclaimed from latter.
Language: Английский
Citations
2
International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 306, P. 141597 - 141597
Published: Feb. 28, 2025
Language: Английский
Citations
2
Aggregate, Journal Year: 2024, Volume and Issue: 5(5)
Published: May 15, 2024
Abstract Supercapacitors (SCs) are studied and used in various fields due to their high power density, fast charging/discharging rate, as well long cycle life. Compared other traditional electrode electrolyte materials, supramolecular hydrogels have great advantages the application of SCs excellent properties. Unlike covalent bonds, systems assembled through dynamic reversible including host–guest interactions, ion electrostatic hydrogen bonding, coordination etc. The resulting show some special functions, such stretching, compression, adhesion, self‐healing, stimulus responsiveness, etc., making them strong candidates for next generation energy storage devices. This paper reviews representative progress electrodes, electrolytes, based on hydrogels. Besides, properties hydrogels, conductivity, extensibility, compressibility elasticity, frost resistance, flexibility, also reviewed highlight key role hydrogel materials SCs. In addition, this article discusses challenges faced by current technologies, hoping continue promoting future research field.
Language: Английский
Citations
9
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 11, 2025
Abstract Self‐healing hydrogels are intelligent wound dressings to repair structural damage caused by limb movement, demonstrating advantages in stretchable management. Chitosan is widely used the preparation of due biocompatibility and biodegradability. However, self‐healing efficiency mechanical strength chitosan not ideal. To address issues, three hydrogels: single schiff base network (OH), double schiff‐base bond hydrogel (OHD), borate ester bond/schiff (OHPB) designed. The time OHPB only 0.7 s measured real‐time electrochemical test, while OH OHD 3.5 h 1.5 h. Furthermore, exhibits desirable tissue adhesion. Following destruction‐repair process, CIP exosome loaded (ec⊂OHPB) displays approximate 100% drug leakage resistance achieve long‐term antibacterial, cells migration promotion M2 polarization. ec⊂OHPB significantly accelerates infected wounds healing relieving inflammation, facilitating angiogenesis collagen deposition, promoting epidermal remodeling. Consequently, with instantaneous property enhanced performance makes it possible broaden application prospects dressings.
Language: Английский
Citations
1
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160601 - 160601
Published: Feb. 1, 2025
Language: Английский
Citations
1
Composites Communications, Journal Year: 2024, Volume and Issue: 52, P. 102158 - 102158
Published: Nov. 13, 2024
Language: Английский
Citations
5
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 12, 2024
Abstract Natural polysaccharides‐based hydrogels have drawn extensive attention yet been plagued by less desirable stretchability due to their inherent nature. Here, ultra‐stretchable starch‐based (amylopectin/polyacrylamide, AAM) are developed constructing reversible intramolecular physical interactions. This strategy endows the hydrogel with exceedingly ultrahigh deformation a continuous hydrogen bonding network. It can be stretched from than 0.5 >300 cm without breakage that elongation exceeds 600 times original length. The collected universal testing machine reaches up 36 000% outperforming previous reports and demonstrating extraordinary stretchability. Furthermore, an interwoven structure of interaction trace covalent bonds make stress reach 0.28 MPa, accompanied ultra‐high strain 22 500% significant toughness (47 MJ·m −3 ). displays high transparency (≈93%), low‐temperature resistance, moisturizing property, interfacial adhesion property. Intriguingly, aqueous precursor act as inks prepare various forms within minutes through facile writing or drawing method. verifies strong potential in both fields human motion sensor (After long‐term conditions) energy storage. study will facilitate progress multifunctional hydrogels.
Language: Английский
Citations
4
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Abstract Smart hydrogels with multi‐fluorescent properties hold great promise for information encryption. However, conventional fluorescent often lack adequate mechanical and multiple responsiveness, limiting their range of applications. In this study, a multifunctional hydrogel featuring an interpenetrating polymer network (IPN) composed poly(vinyl alcohol) (PVA) poly(acrylic amide‐co‐2‐acrylamido‐2‐methylpropane sulfonic acid) P(AM/AMPS) chemical cross‐linking networks is designed. Through the coordination lanthanide ions (Eu 3+ , Tb ) glycine, achieves exceptional stretchability (over 900%) adjustable photoluminescence properties. Due to acid groups on 2‐acrylamide‐2‐methylpropanesulfonic (AMPS), which support various noncovalent interactions, PVA‐P(AM/AMPS)‐Gly‐Ln displays strong reversible adhesive diverse substrates. Ultimately, assembled into multifunctional, flexible sensor, boasting satisfactory sensitivity (GF = 5.3), rapid response rate (100 ms), outstanding characteristics, highlighting its potential applications in human motion detection
Language: Английский
Citations
0