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Here we consider the dynamic surface tension (DST) reduction at approximately 0.1 s surface age of three homologous series of surfactants in aqueous solution containing 7% deionised type IV bone gelatin (Kodak type TCG-1I). The three homologous series represent three different classes of surfactant, anionic, nonionic and nonionic-anionic. Whereas the static or equilibrium values of surface tension...
The SDS unimer concentration in a series of mixed anionic/non-ionic surfactant solutions comprising sodium dodecylsulphate (SDS) and sugar-based dodecyl bis-N-methyl gluconamides (C12BNMG) have been studied using an anionic surfactant selective electrode, both in the presence and absence of the polyampholyte gelatin. The activity of the SDS has been calculated at the critical micelle concentration...
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