Accueil > Publications > 2008 & older > 2005 > Solubilization of Homopolymers in a Solution of Diblock Copolymers.

Solubilization of Homopolymers in a Solution of Diblock Copolymers.

Izzo, D. ; Marques, C.M.

J. Phys. Chem. B, 2005, 109, 6140.

We study theoretically mixed solutions of homopolymer and diblock copolymer chains. The solvent is a poor
solvent for the homopolymers and a selective solvent for the copolymers. We find that the formation of
copolymer micelles containing also the insoluble chains allows for an increased solubility of the homopolymers
in the solution. In agreement with experiments, we find also that the solubilization power of the micelles,
that is, the maximum amount of total homopolymer weight solubilized per unit weight of copolymers in
solution, decreases strongly with the homopolymer index of polymerization.

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