Abstract
Abstract Values of the polymer-solvent interaction parameter were obtained for cis-1,4-poly(butadiene) vulcanized with alkylphenol—formaldehyde oligomer, sulfur, and peroxide systems swollen with heptane, benzene, and m-xylene. The dependence of the interaction parameter on the degree of crosslinking was demonstrated. The method of vulcanization does not affect the dependence of χ on υr for good solvents, but influences this dependence for n-heptane, a weak solvent. It was shown that the better the solvent, the stronger the dependence of the interaction parameter on the degree of crosslinking.
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