Dissolution of Maize Starch in Aqueous Ionic Liquids: The Role of Alkyl Chain Length of Cation and Water:Ionic Liquid Ratio was written by Ren, Fei;Wang, Jinwei;Yu, Jinglin;Xiang, Fengjuan;Wang, Shuo;Wang, Shujun;Copeland, Les. And the article was included in ACS Sustainable Chemistry & Engineering in 2019.Recommanded Product: 79917-89-8 This article mentions the following:
The dissolution behavior of maize starch in water:ionic liquid (IL) mixtures at ambient temperature (22-23 °C) was studied. The ionic liquids used were 1-butyl-3-methylimidazolium chloride ([C4 mim][Cl]), 1-propyl-3-methylimidazolium chloride ([C3 mim][Cl]), and 1-ethyl-3-methylimidazolium chloride ([C2 mim][Cl]). Structural analyses indicated that long- and short-range mol. order in the starch decreased with decreasing water:IL ratio. At water:IL ratios of 10:1 and 5:1, the extent of disruption of starch structure followed the order [C4 mim][Cl] > [C3 mim][Cl] > [C2 mim][Cl]. At lower water:IL ratio (2:1), the complete disruption of starch granule morphol. and ordered structures in water:[C3 mim][Cl] and water:[C2 mim][Cl] mixtures indicated these mixtures were more effective in dissolving starch than water:[C4 mim]Cl mixture Results from rheol., FTIR, and 1H NMR analyses of water:IL mixtures showed that as water:IL ratio decreased, the viscosity of solutions increased, the interaction between IL and water decreased, and the interaction between the cation and the anion increased. Stronger interaction between the IL and water and higher viscosity of water:IL mixtures were noted for cations with longer alkyl chains. Our results clearly showed that both the alkyl chain length of cations and water:IL ratio played key roles in the dissolution of starch, predominantly by affecting the interaction between ILs and water and viscosity of water:IL mixtures In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Recommanded Product: 79917-89-8).
1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Recommanded Product: 79917-89-8
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem