Synthesis and Surface Active Properties of Cyanuric Chloride-based Branched Surfactant

A series of novel branched sodium carboxylate surfactants were synthesized from cyanuric chloride, behera amine, alcohol amine and 1,4-Bis（3-aminopropyl） piperazine through seven steps, and the total yield is about 25%. The chemical structures of target products were confirmed by 1 H NMR, 13 C NMR, FT-IR and ESI-MS. Their critical micelle concentrations（CMC） were also determined by surface tension tests in the aqueous solutions at 22 ?. The results showed that the CMC value of multi-carboxylate anionic surfactants decreased with the increase of hydroxyl. Additionally, the branched structure of end group can reduce surface tension more than straight-chain type, which was determined by γCMC. The decomposition temperature of the target compound was 250 ?, which was also tested by TG/DTA curve.