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以苯乙烯、二乙烯基苯为共聚单体,过硫酸铵为引发剂,十六烷基三甲基溴化铵为乳化剂,采用油包水型高内相比乳液模板法合成了聚苯乙烯/二乙烯基苯(PSD)多孔树脂。考察了相对于分散相不同体积分数的乙醇对乳液稳定性及PSD的密度、吸(释)液性、溶胀率等性能的影响。发现随着乙醇用量的增加,反应体系难以形成稳定的乳液,其密度、吸液性、溶胀性下降,而对甲苯的释放速率增加;PSD多孔材料经水-乙醇抽提后吸水率降低至0.26 cm3/g,而吸甲苯率仍达15.60~18.42 cm3/g,表现出明显的吸油憎水性能。
Styrene, divinylbenzene as comonomer, ammonium persulfate as initiator and cetyltrimethylammonium bromide as emulsifier, poly-benzene Ethylene / divinyl benzene (PSD) porous resin. The effect of different volume fractions of ethanol on the stability of emulsion and the density, sorption (release) properties, swelling rate and other properties of the emulsion were investigated. It was found that with the increase of the amount of ethanol, the reaction system was difficult to form a stable emulsion, the density, liquid absorption, swelling decreased while the release rate of toluene increased. The water absorption of PSD porous material after water-ethanol extraction decreased to 0.26 cm3 / g, while the toluene absorption rate was still up to 15.60 ~ 18.42 cm3 / g, showing a significant water-absorbing hydrophobic properties.