TY - SER AU - Xu,Yuming AU - Wu,Jiangying AU - Wu,Jiangying TI - Optimizing the polyethylene oxide and polypropylene oxide contents in diethylenetriamine-based surfactants for destabilization of a water-in-oil emulsion KW - Polietileno KW - Polipropileno KW - Emulsiones petróleo - agua ER -