The results showed that their surface tension decreased with an increasing alkyl chain length(n) at the 1-position of the cation. The values of surface tension covered a relatively wide range from 48.0 mJ/m2(PF6) to 35.7 mJ/m2(PF6).

 
  • 采用Wilhelmy白金板法在室溫25℃測定了離子液體的表面張力;隨著(zhù)1位氮上取代基碳鏈的增長(cháng);表面張力從[C4mim]PF6的48.;0 mJ/m2逐漸下降到[C7mim]PF6的35
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