Studies on surface tension of 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU)-glycerol and CO2-DBU-glycerol solutions at temperatures from 288.1 K to 323.1 K Liu, Y.; Lin, S.; Lu, H.; Liu, C.; Wu, K.; Liang, B.; The Journal of Chemical Thermodynamics 2018, 125, 32-40