FIELD: polymer materials. SUBSTANCE: invention provides radial and star-like block copolymers with formula I: [(UD)y-A-HD]x-Y-(UD)z (I), wherein A is vinyl aromatic hydrocarbon block with molecular weight 4000 to 20000; HD hydrogenated conjugated diene block with molecular weight 10000 to 100000; Y multifunctional coupler; UD unhydrogenated conjugated diene block with molecular weight 1000 to 80000; x integer from 2 to 20; y = 0 or 1; z integer from 0 to 10; z+y varies between 1 and 11; and x+z varies between 3 and 30, and their derivatives containing adhesion-increasing polar groups. EFFECT: improved composition characteristics. 7 cl, 9 tbl
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