Journal
TENSIDE SURFACTANTS DETERGENTS
Volume 59, Issue 4, Pages 294-304Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/tsd-2022-2431
Keywords
dicationic ionic liquids (SILs); feeding deterrents; surface active ionic liquids (SAILs); surface properties; wettability
Funding
- Ministry of Education and Science in Poland [0912/SBAD/2108]
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This study investigates the surface activity of dicationic ionic liquids and their deterrent effect on insects like the confused flour beetle, finding that the deterrent activity increases with improving wetting ability.
The surface activity of dicationic ionic liquids is described in this paper. The basic interfacial parameters including critical micelle concentration (CMC), surface tension at the CMC (gamma(CMC)), the adsorption efficiency (pC(20)), surface excess (Gamma(max)), the minimum surface occupied by a single molecule (A(min)), and Gibbs energy (Delta G(ads)(0)) were investigated and compared. Basically, we wanted to extend our previous study on dicationic ionic liquids with bis-ammonium cation. Knowing that, the compounds obtained are effective in limiting the feeding of adult and larvae confused flour beetle (T. confusum), it was decided to correlate the deterrent activity with the surface properties of analyzed dicationic ionic liquids. Accordingly, it was found that the deterrent activity of the studied compounds increases with increasing wetting ability.
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