The microstructure of di-alkyl chain cationic/nonionic surfactant mixtures: observation of coexisting lamellar and micellar phases and depletion induced phase separation. by Penfold, J, Staples, E, Ugazio, S, Tucker, I, Soubiran, L, Hubbard, J, Noro, M, O'Malley, B, Ferrante, A, Ford, G, Buron, H