Preferential adsorption of poly(alkylphenyl methacrylate)s in tetrahydrofuran/water

The preferential adsorption in dilute solution of poly(phenyl methacrylate) and its derivatives in tetrahydrofuran/water mixtures was studied by differential refractometry and dialysis equilibrium. Relationships were found between the rigidity factor σ, the inversion composition ν₂(λ = 0) and the maximum of the adsorption (λ_min). The results for poly(dimethylphenyl methacrylate)s are compared with other poly(methacrylate)s and poly(styrene)s. The results are discussed in terms of the differences in the symmetry of the pendant group.