【摘要】 研究了十六烷基三甲基溴化铵(CTAB)和十二烷基磺酸钠(AS)复配体系在稀溶液区的相行为.考察了氟化钠、氯化钠、溴化钠和氯化钾对其相行为的影响.研究表明,在318.15 K下,CTAB-AS复配体系在水溶液或0.10mol.kg-1盐水溶液中,均可形成两个双水相区.每个双水相区均位于一个各向同性溶液单相区和一个液晶单相区之间,在两个液晶单相区之间为非均相区.无机盐的加入使非均相区和双水相区面积增大,双水相区向邻近的各向同性溶液单相区的方向迁移.更多还原

【Abstract】 The phase behavior of cetyltrimethylammonium bromide（CTAB） and sodium dodecyl sulfonate（AS） mixed system in dilute aqueous solution region has been studied.The effects of NaF,NaCl,NaBr and KCl on the phase behavior have been investigated.The results indicate that two aqueous two-phase regions can be formed at 318.15 K for CTAB-AS mixed system in aqueous solution or in 0.10 mol·kg^-1 brine.Every aqueous two-phase region is surrounded by one isotropic single-phase region and one liquid crystalline single-phase region,between the two liquid crystalline single-phase regions,there is one heterogeneous phase region.The addition of inorganic salt results in the enlargement of heterogeneous phase region and aqueous two-phase regions,meanwhile,the aqueous two-phase regions shift to the adjacent isotropic single-phase regions.更多还原