Portal de Periódicos da CAPES

Surface tension of homologous series of liquids

1973; Elsevier BV; Volume: 42; Issue: 1 Linguagem: Inglês

10.1016/0021-9797(73)90022-2

1095-7103

D. G. LeGrand, George L. Gaines,

Adsorption, diffusion, and thermodynamic properties of materials

Literature data for the surface tensions of several homologous series of alkane derivatives, including compounds of the types R-X, X-R-X and R-X-R where R is an n-alkyl residue, as well as the interfacial tensions against water of n-alkanes, alkyl benzenes and dimethylsiloxanes, have been collected. It was found that in nearly all cases the surface or interfacial tensions are linear in M−23, where M is the molecular weight. The extrapolated infinite-molecular-weight surface or interfacial tensions (i.e., at M−23 = 0) are nearly the same for all the alkane derivatives. This functional dependency is that which we had previously found for the surface tension of several series of polymer liquids.