Abstract

AbstractThe temperature‐concentration phase diagrams of syndiotactic polystyrene (sPS)/benzene gels and sPS/toluene gels establish the existence of two polymer‐solvent compounds in both systems. In particular it is found that the sto ichiometries of the compounds differ with the type of solvent: The stoichiometrics, expressed as solvent molecules/monomer are respectively for the benzene 4/1 and 1/1 and for the toluene 0.8/1 and 1/4. Neutron diffraction patterns allow us to confirm the existence of differents compounds in sPS/toluene gel and sPS/benzene gel.

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