AB ST RACT Lyotropic l i q u i d c r y s t a l s were prepared from mixtures of l e c i t h i n and nonionic surfactants with the general formula polyethylene glycol dodecyl e t h e r s w i t h no low molecul a r sol vents being added. The repeat distance in the s t r u c t u r e was reduced w i t h increased amount of t h e nonionic surfactant showing complete penetration of the s u r f a c t a n t s between the l e c i t h i n molec u l e s .
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