The　maximum　bubble　pressure　technique　has　been　used　to　Study　the　adsorption　kinetics　of　binary　mixtures　of　an　anionic　Gemini　surfactant　C9pPHCNa　with　a　cationic　conventional　surfactant　C(10)TABr　in　aqueous　solutions.　The　dynamic　surface　tension　data　were　analyzed　using　the　revised　Ward　and　Tordai　equations　as　well　as　the　micelle　dissociation　kinetic　model　suggested　by　Joos　et　al.　The　apparent　diffusion　coefficient　D-a　below　the　cinc,　the　adsorption　barrier　epsilon(a)　and　the　micelle　dissociation　constant　k(mic)　were　obtained.　The　D(a)s　at　short　time,,　and　at　long　times　were　respectively　0.2-16　x　10(10)　and　0.08-0.9　x　10(10)　m(2)　s(-1).　the　latter　corresponded　to　the　adsorption　barrier　epsilon(a)　of　10-20　kJ　mol(-1).　The　minimum　epsilon(a)　appeared　at　the　mole　fraction　of　C9pPHCNa　(alpha(1),　on　a　surfactant-only　basis)　in　the　bulk　solution　being　0.33.　The　k(mic)s　of　the　mixed　micelles　were　about　10-2300　s(-1).　The　most　stable　mixed　micelles　were　formed　at　alpha(1)　=　0.2　rather　than　at　alpha(1)　=　0.33　owing　to　great　discrepancy　of　hydrophobicity　between　the　two　components.　These　results　indicated　that　the　composition　of　mixed　Solution　was　an　important　factoraffectint,　the　adsorption　kinetics　and　the　micelle　stability.　(c)　2005　Elsevier　Inc.　All　rights　reserved.