Effect of Solvent on the Mechanical and Structural Properties of N-Alkyldiamide Organogels was written by Khacef, Leila;Legros, Philippe;Herve, Pascal;Ovarlez, Guillaume;Medina-Gonzalez, Yaocihuatl. And the article was included in Langmuir in 2021.Quality Control of Ethyl 2-hydroxybenzoate This article mentions the following:
Here, we study organogels prepared thanks to a new organogelator, the N-oleyldiamide mol., which shows a remarkable propensity to gelify a large scope of solvents, from aprotic to high protic solvents. The solvent plays a key role in the formation and stability of supramol. self-assemblies. However, the understanding and the control of its effects can be complex as many parameters are a priori involved. This study aims to understand the effect of solvent on the structures of organogels and on their final mech. properties. Five solvent classes have been selected ranking from low protic to high protic, according to the Hansen H-bond parameter 鏈猦. The solvent proticity appears to be one of the main parameters that affect the organogel internal structure and therefore the final rheol. properties. For a given organogelator fraction, the terminal elastic modulus measured by oscillatory rheol. is observed to increase significantly with the Hansen H-bond solvent parameter 鏈猦. Materials of different mech. properties are then shown to display various structures, which are investigated thanks to cryo-SEM. Besides, wide-angle X-ray scattering (WAXS) has been used to probe the gelator organization at the mol. scale with regard to the solvent nature, to understand the supramol. self-assembly of this promising mol. In the experiment, the researchers used many compounds, for example, Ethyl 2-hydroxybenzoate (cas: 118-61-6Quality Control of Ethyl 2-hydroxybenzoate).
Ethyl 2-hydroxybenzoate (cas: 118-61-6) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of Ethyl 2-hydroxybenzoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics