Quality Control of 2,6-DiaminopyridineIn 2021 ,《Toward Robust, Tough, Self-Healable Supramolecular Elastomers for Potential Application in Flexible Substrates》 was published in ACS Applied Materials & Interfaces. The article was written by Fan, Jianfeng; Huang, Jiarong; Gong, Zhou; Cao, Liming; Chen, Yukun. The article contains the following contents:
A robust, tough, and self-healable elastomer is a promising candidate for substrate in flexible electronic devices, but there is often a trade-off between mech. properties (robustness and toughness) and self-healing. Here, a poly(dimethylsiloxane) (PDMS) supramol. elastomer is developed based on metal-coordinated bonds with relatively high activation energy. The strong metal-coordination complexes and their corresponding ionic clusters acting as the crosslinking points strengthen the resultant supramol. networks, which achieves superior mech. robustness (2.81 MPa), and their consecutive dynamic rupture and reconstruction efficiently dissipate strain energy during the stretching process, which leads to an impressive fracture toughness (32 MJ/m3). Addnl., the reversible intermol. interactions (weak hydrogen bonds and strong sacrificial coordination complexes/clusters) can break and re-form upon heating; thus, the elastomer self-heals at a moderate temperature with the highest healing efficiency of 95%. As such, the potential of the as-prepared supramol. elastomer for a substrate material of flexible electronic devices is discovered. The experimental part of the paper was very detailed, including the reaction process of 2,6-Diaminopyridine(cas: 141-86-6Quality Control of 2,6-Diaminopyridine)
2,6-Diaminopyridine(cas: 141-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Quality Control of 2,6-Diaminopyridine