6Liu L, Rosen M J. The interaction of some novel diquaternary Gemini surfactants with anionic surfactants [J]. J Colloid Interface Sci , 1996,179 : 454 - 459.
7Zana R, Benrraou M, Rueff R. Alkanediyl alpha omega bis ( dimethylakylammonium bromide) surfactants ( 1 ) :effect of the spacer chain length on the critical miceUe comncentration and micell inoization degree [ J ]. Langmuir, 1991 (7): 1072 - 1781.