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Ternary phase diagram of PPG-5-CETETH-20 (surfactant) with oleic acid (oil phase) and poloxamer 407 aqueous dispersion (1%). ME, microemulsion; LC, liquid crystal; EM, emulsion; PS, phase separation; PRO, PPG-5-CETETH-20 (Procetyl®); P407 1%, poloxamer 407 dispersion 1%; OA, oleic acid.
