Symmetry transition in the cubic phase of a ternary surfactant system
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چکیده
We report a small-angle X-ray and neutron scattering investigation in the cubic phase of the ternary system water/didodecyldimethyl ammonium bromide (DDAB)/octane. We have observed a systematic variation in the lattice parameter as a function of water content, which can be related to the change in interfacial area per unit cell with the aqueous volume fraction. Our results are consistent with a bicontinuous periodic constant mean curvature structure, and show a transition from diamond to body-centred cubic symmetry on increasing the water content of the system. Tome 51 N° 14 15 JUILLET 1990 1 Phys France 51 ( 1990) 1501-1508 . 15 JUILLET 1990, Classification Physics Abstracts 61.12E 61.10L61.30E
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تاریخ انتشار 2016