The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . 1739-84-0, formula is C5H8N2, Name is 1,2-Dimethyl-1H-imidazole. In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with an increase of the alkyl chain length of the alcohols. Reference of 1739-84-0.
Nie, Yiwen;Chen, Junjie;Wu, Zhihui;Zhou, Jinyue;Li, Zhenghan;Gao, Shanjun;Shen, Chunhui research published 《 Crosslinked anion exchange membranes based on styrene/acrylonitrile/vinylimidazole copolymer and PPO》, the research content is summarized as follows. Aliphatic polymers, such as polypropylene, styrene ethylene butylene styrene and norbornene, which show great alk. stability and flexibility, have become the main research trend of the skeleton of anion exchange membranes. Here, we prepared a copolymer with all carbon atoms on the main chain. Firstly, a new vinylimidazole cationic monomer was prepared, and then copolymerized with styrene and acrylonitrile to obtain a copolymer (PASIm). Furthermore, (2,6-dimethyl-1,4-phenylene oxide) (PPO) was introduced to crosslink with PSAIm to prepare AEMs with different crosslinking degrees (CEM-X, X = 6,12,18,24,30). 1H NMR and FT-IR showed that PASIm was successfully synthesized and crosslinked with PPO. The prepared membranes had high hydroxide ionic conductivity and excellent alk. stability. AFM showed that the CEM-18 had obvious microphase separation structure, which was beneficial to the construction of ion channels in the membrane. Thus, the CEM-18 showed the highest ionic conductivity, up to 59.21 mS cm-1 at 80°C. CEM-24 with higher crosslinking degree showed the highest alk. stability. After immersing in 1 M KOH solution at 80°C for 240 h, 86.52% of the initial ionic conductivity was retained. These results indicate that the prepared anion exchange membranes have broad application prospects.
Reference of 1739-84-0, 1,2-Dimethylimidazole is used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It also can be used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.
1,2-Dimethylimidazole is a heterocyclic compound that contains nitrogen and carbon. It can be produced by the reaction between glyoxal and fatty acid in the presence of a base. 1,2-Dimethylimidazole has been shown to have biological properties such as an antioxidant effect. It is also used as a chemical intermediate for production of other chemicals such as 2-methylimidazole and 3-methylimidazole. 1,2-Dimethylimidazole has been shown to react with metal carbonyls to produce methylimines, which are useful intermediates in organic synthesis. The reaction mechanism involves hydrogen bonding and steric interactions between the imidazole ring and the metal carbonyl reactant., 1739-84-0.
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem