Counterion effect on the solution and thermodynamic properties of lithium perfluoroalkanoates

RUSO, J.M.; BLANCO, E.; MESSINA, P. V.; SABÍN, J.; PRIETO, G.; SARMIENTO, F.

Beijing

Congreso; 40st IUPAC World Chemistry Congress; 2005

Chinese Chemical Society, Institute of Chemistry, CAS

The iso!herms of conductívily of litllium perfluorooctanoate and undecanoste were measurcd and !he critical micelle coneentr.tion, eme, degree of ionization of !he míeelles. f3 ? delermined in ? range of temperatures aboye !he Krafft poin!. The thermodyn.mic par.meten;, Gibbs free energy, AG~. enthalpy AH:'. and eOlIopy AS~ of mieeJle formalion, were determíned from a proposed thermodynamíe mode!. Apparenl molar volume and Ibe apparent mollll' adiabat;e' eompressibility foe bolh surfaelants have becn calculate