The monodispersed water in oil in water(W_1/O/W_2) multiple emulsion was prepared by dispersing the water in oil(W_1/O) emulsion obtained by stirring into the continuous phase through the SPG(shirasu porous glass) membrane.

• 采用搅拌乳化方法制备水包油(W1/O)型乳状液,经膜乳化法制得单分散的复乳(W1/O/W2)型乳状液,再通过液中干燥法制得单分散中空聚苯乙烯(PS)微球。