Transformation of Epoxidized Natural Rubber into Ionomers by Grafting of 1H-Imidazolium Ion and Development of a Dynamic Reversible Network was written by Mandal, Subhradeep;Hait, Sakrit;Simon, Frank;Ghosh, Anik;Scheler, Ulrich;Arief, Injamamul;Tada, Toshio;Hoang, Tung X.;Wiessner, Sven;Heinrich, Gert;Das, Amit. And the article was included in ACS Applied Polymer Materials in 2022.Safety of 1-Methyl-1H-imidazol-3-ium chloride This article mentions the following:
Epoxidized natural rubber (ENR) was grafted with imidazolium ions, giving the materials self-healing and reprocessing properties. These imidazolium ions in the form of neutral ionic repeating units transformed the polyisoprene-based polymer chains into ionomers. Fourier transform IR (FTIR) spectroscopy and solid-state NMR analyses were carried out to confirm various interactions between ENR and 1H-imidazole. In particular, dynamic hydrogen bonding and the formation of ionic aggregates led to superior mech. strength (tensile strength, ~4.5 MPa; elongation at break, ~700%), self-healing efficiency (90% in terms of elongation), and reprocessability of the resulting compound Furthermore, the material exhibited excellent transparency with a normalized transparency of 90 ± 0.7% at a typical thickness of 0.5 mm. The visualization and the stability of the healing processes were confirmed by SEM and confocal microscopy analyses. Finally, temperature scanning stress relaxation (TSSR) studies were carried out to identify the different types of stress relaxation behavior of the material and the effects of various noncovalent interactions on the high-temperature stability of the compounds These studies could assist to gain significant insight into natural rubber-based advanced materials for sustainable development. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3Safety of 1-Methyl-1H-imidazol-3-ium chloride).
1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Safety of 1-Methyl-1H-imidazol-3-ium chloride
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem