This　paper　reports　a　study　on　the　aggregation　and　rheological　behavior　of　the　family　of　O,　O’-bis(sodium　2-alkylcarboxylate)-p-dibenzenediol　(referred　to　as　Cmϕ2Cm,　m　=　10,　12,　14,　respectively)　in　aqueous　solution　using　dynamic　light　scattering,　1H　NMR　and　rheology　measurements.　The　results　showed　that　all　three　surfactants　formed　large　network-like　aggregates　at　low　concentrations.　However,　C10ϕ2C10　formed　small　compact　micelles　simultaneously　but　neither　C12ϕ2C12　nor　C14ϕ2C14　did.　These　network-like　aggregates　were　transformed　into　the　wormlike　micelles　with　increasing　the　surfactant　concentration.　The　length　of　alkyl　tails　was　found　to　strongly　affect　the　viscoelasticity　of　wormlike　micellar　solutions.　From　C10ϕ2C10,　C12ϕ2C12　to　C14ϕ2C14　in　turn,　the　system　developed　rapidly　from　the　viscous　fluid　to　typically　viscoelastic　solution　and　then　to　a　solid-like　gel.　The　scaling　exponents　of　the　concentration　dependence　of　both　zero-shear　viscosity　(η0)　and　plateau　elastic　modulus　(G′∞)　greatly　exceeded　the　theoretic　predictions,　showing　fast　micellar　growth　and　strong　entanglements　between　the　wormlike　micelles.　For　C14ϕ2C14　that　had　the　longest　alkyl　tails　in　this　series,　the　wormlike　micelles　formed　at　140　mmol L−1　were　quite　long　and　the　micellar　reptation　dominated　over　the　scission　and　recombination.　This　system　yielded　a　viscosity　as　high　as　2.20　×　104 Pa⋅s　at　25 °C.　©　2014,　Springer-Verlag　Berlin　Heidelberg.