FIELD: chemistry.
SUBSTANCE: rubber-based mixture differs in that it contains at least the following components: from 5 to 100 phr of at least one polymer A of the following formula I): I) F-(P-Y-P-Sx)z-P-Y-P-F, where S is a sulfur atom, P is an elastomeric polymer chain obtained by the anionic polymerization of at least one diene with the conjugated double bonds, and optionally at least one vinylaromatic compound in the presence of two-functional initiator, Y is a dicarbanionic group obtained from the two-functional initiator, x independently is an integer for each group of Sx equal to or greater than 1, provided that at least for one of the group of Sx, x is selected from the numbers 2, 3, and 4, z is an integer from 1 to 160, each F independently is an end group selected from the group consisting of -H, -SH, -SOH, -SCl, -SSCl, -SO2H and -SO3H, and at least one filler.
EFFECT: improved rolling resistance, improved wear properties, elasticity.
12 cl, 1 tbl
