Weichen Wang, You Liang, Jiale Yang
Sep 4, 2019
Citations
2
Influential Citations
26
Citations
Journal
ACS Sustainable Chemistry & Engineering
Abstract
Mesotrione is one of triketone herbicides widely used in corn fields to control broadleaf and some grass weeds because of its high herbicidal activity and crop safety. However, mesotrione is unstable during the progress of storage and application and it can easily enter the groundwater to cause environmental pollution due to its high leakage in soil. In this study, twenty-two new salts based on mesotrione, most of which were herbicidal ionic liquids (HILs), were synthesized by pairing with different structural cations to optimize the physicochemical properties for solving these problems of mesotrione. The results showed that the water solubilities of HILs were no longer limited by pH, and could be decreased by selecting suitable paired cations. And HILs exhibited higher thermal stability, lower surface tension, higher octanol-water partition coefficient, better soil adsorption capacity and herbicidal activity than mesotrione. HIL-22 paired with cetylpyridinium could meet the requirements such as control e...