Nonionic-anionic Colloidal Systems Based on Alkaline and Ammonium 2-ethyl-hexyl Polyethyleneoxy (n=3-18) Propionates/di-butyl-naphthalenesulphonates

The paper analyzes the main issues in the synthesis of colloidal systems accessing a reaction scheme structured on the cyanoethylation of heterogeneous polyethoxylated (n=3-18) 2-ethyl-hexyl (EH) alcohols, followed by exhaustive acid hydrolysis, with di-butyl-naphthalene sulphonic acid, with and without phasetransfer catalysts (PTC).