Properties of ester-based functional ionic liquids and their application in sampling in air - Details

Author：

Liu, Chaoqing (Liu, Chaoqing.) | Wang, Xiaoyi (Wang, Xiaoyi.) | Ren, Hairong (Ren, Hairong.) | Sun, Dongling (Sun, Dongling.) | Zhao, Jingqiang (Zhao, Jingqiang.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

The　ionic　liquids　1-methyl　acetate-3-methylimidazolium　bis　(trifluoromethanesulfonyl)　imide　([CH2COOCH3MIM]NTf2)　and　1-(4-methyl)-methyl　benzoate-3-methylimidazolium　bis　(trifluoromethanesulfonyl)　imide　([CH2C6H4COOCH3MIM]　NTf2)　were　synthesized　by　traditional　two-step　method.　Then　study　the　thermal　stability,　solubility　in　different　solvents　and　the　conductivities　in　various　solvents　including　acetonitrile,　DMSO,　methanol　and　ethyl　acetate　of　the　ionic　liquids.　And　compare　the　enrichment　effect　of　them　with　Tenax.　The　results　show　that　the　ionic　liquids　don＇t　decompose　under　300°C　and　they　can　solve　in　most　organic　solvents　and　link　with　the　polarity　of　the　solvents.　The　conductivity　of　ionic　liquids　in　different　solvents　increases　with　the　rise　of　concentration　and　temperature.　The　conductivity　order　is　κ　(acetonitrile　as　solvent)　＞　κ　(methanol)　＞　κ　(DMSO)　＞　κ　(ethyl　acetate).　The　enrichment　effect　of　[CH2COOCH3MIM]NTf2　is　better　than　Tenax.　©　All　Rights　Reserved.

Keyword：

Methanol Ionic liquids Organic solvents Electric conductivity Acetonitrile Thermodynamic stability Blast enrichment

Author Community：

[ 1 ] [Liu, Chaoqing]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, Xiaoyi]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Ren, Hairong]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Sun, Dongling]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhao, Jingqiang]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China