The CMC of CTAB is 0.0009 mol/L in water, while it is 0.24 mol/L in ethanol.

http://link.springer.com/article/10.1007%2Fs11458-006-0069-y

For Pluoronic 123

refer

http://pubs.acs.org/doi/pdf/10.1021/ma00087a009

• Thanks  Dr Murugesan Muthu
• the solution   is methanole