The biggest problem with a silicone surfactant containing Si-O-C bond, is its fast hydrolysis after mixing with water. I would like to see a detailed investigation of the hydrolytic stability of the prepared surfactant.
The products would be HO (CH2)4OH and HOSi(Me)2 (CH2)4 OH, thus the reaction can be followed by conventional method viz., running and IR, FTIR spectra with time, etc.,