Effect of amino acid on the surface adsorption and micellar properties of surface active ILs varying in cationic head groups. Issue 8 (August 2022)

• Record Type: Journal Article
• Authors: Kaur, Ramanjeet; Kumar, Harsh; Kumar, Barjesh; Singla, Meenu; Kumar, Vaneet; Ghfar, Ayman A.; Pandey, Sadanand
• Is Part Of: Heliyon. Volume 8:Issue 8(2022)
• Publication Date: 2022-08
• Subjects: 1-dodecyl-3-methylimidazolium bromide -- N-dodecyl-N-Methylmorpholinium bromide -- L-methionine -- CMC -- Electrical conductivity -- Surface tension; Research -- Periodicals; Medical sciences -- Periodicals; Natural history -- Periodicals; Social sciences -- Periodicals; Earth sciences -- Periodicals; Physical sciences -- Periodicals; 507.2
• DOI: 10.1016/j.heliyon.2022.e10363
• Languages: English
• ISSNs: 2405-8440

Abstract

Abstract: The interfacial along with bulk characteristics of the aqueous solutions of ILs with dissimilar cationic head group viz. 1-dodecyl-3-methylimidazolium bromide ([C12 mim][Br]), and N-dodecyl-N-methylmorpholinium bromide ([Mor1, 12 ][Br]) in the absence and the presence of an amino acid L-Methionine as an external additive have been examined by electrical conductivity, UV-Visible, surface tension, and DLS measurements. The CMC values, and the lowest maximum surface excess concentration (Гmax ) achieved from all three techniques, and surface tension measurements respectively displayed more surface activity of the [C12 mim][Br] than the [Mor1, 12 ][Br]. Also, the morpholinium head group is less hazardous than imidazolium, it can be utilised to design ILs that are greener, mainly in combination with polar, small, and non-toxic side chains and anions. Graphical abstract: Image 1 Abstract : 1-dodecyl-3-methylimidazolium bromide, N-dodecyl-N-Methylmorpholinium bromide, L-methionine, CMC, Electrical conductivity, Surface tension.