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 Octyl acetate The following contents are mentioned in the article:
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 δh. 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 δh. 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. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Quality Control of Octyl acetate).
Octyl acetate (cas: 112-14-1) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Quality Control of Octyl acetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics