The major discovery of organic gels

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Organic gels fall within the fields of materials science and chemistry. Due to their numerous properties, they have attracted great interest from scientists, and they hold promise for playing a significant role in various fields such as biology and materials science. Recent research shows that polyionic liquids are derivatives of ionic liquids that contain polymerizable groups such as double bonds; they possess both the characteristics of ionic liquids and the mechanical properties of polymers； It exhibits excellent performance in the preparation of solid ionic conductors and porous materials, as well as in carbon dioxide absorption. Today, a team of German researchers developed a new type of high-performance supramolecular gel system by combining imidazole-containing polyionic liquids (Im-PIL) with azo-grafted polyacrylic acid (PAA-Azo). This gel system exhibits excellent self-healing properties, stretchability, and self-contracting properties. The simply prepared supramolecular gel exhibits extremely excellent properties: it can achieve rapid healing through non-covalent bonds within the system without any external stimulation, and its stretchability increases by a factor of five compared to before. Furthermore, when the aforementioned supramolecular gel system was treated with Gdn-HCl, the gel system exhibited significant shrinkage behavior. Theoretical analysis shows that when Gdn-HCl is used, the hydrogen bonds present in the supramolecular system are broken, which causes the solvent in the system to be expelled and leads to the contraction of the gel system ； At this point, the cation-π interaction within the system remains intact, and the disruption of hydrogen bonds provides additional binding sites for the cation-π interaction, thereby making the supramolecular gel system more \"strong.\" The article is sourced from Mofan Network