A　series　of　novel　itaconic　acid　based　asymmetrical　gemini　surfactants　containing　two　long　alkyl　chains,　two　self-same　nonionic　groups　along　with　an　anionic　moieties　covalently　attached　by　an　itaconic　acid　spacer　group　(polyoxyethylene　laurinol　ether　sodium　sulfoitaconate:　PLSS-n)　have　been　synthesized　through　esterification　and　sulfonation　reaction　using　itaconic　anhydride　(IAn)　and　polyoxyethylene　alkyl　ethers.　The　chemical　structures　of　the　PISS-n　homologs　were　confirmed　through　FT-IR,　H-1　NMR　spectra　and　elemental　analysis　(EA).　And　their　physico-chemical　properties　in　aqueous　solutions　were　further　investigated.　The　PLSS-n　species　have　lower　equilibrium　surface　tension　(gamma(CMC))　and　critical　micelle　concentration　(CMC),　lower　Krafft　points　(T-k),　good　wettability　and　foaming　properties.　The　gamma(CMC)　and　CMC　values　of　PLSS-n　are　decreased　with　the　increase　of　the　temperature.　The　PLSS-n　homologs　exhibit　high　surface　activities　even　at　lower　temperature.　The　PLSS-n　homologs　all　exhibit　smaller　values　of　areas　per　molecule　(A(min))　and　larger　values　of　maximum　excess　surface　concentration　(Gamma(max)).　The　rheological　behaviors　of　the　PLSS-n　solutions　show　that　only　PLSS-3　shows　shear　thinning　feature　with　the　increasement　of　shear　rate.　The　average　diameters　of　the　PLSS-n　aggregations　were　studied　by　Dynamic　light　scattering　(DLS)　at　25　degrees　C.　Cryogenic　transmission　electron　microscopy　(cryo-TEM)　results　of　the　PISS-n　indicate　that　these　gemini　surfactants　can　form　various　micellar　behaviors,　which　are　affected　by　different　combined　factors.　The　Small　angle　X-ray　scattering　(SAXS)　measurements　provide　evidence　of　the　anisotropic　lamellar　structure.　(C)　2019　Elsevier　B.V.　All　rights　reserved.