FIELD: chemistry.
SUBSTANCE: present invention relates to high molecular weight compounds, and specifically describes a block copolymer containing hydroxyl groups and used as an asphalt modifier. Disclosed block copolymer is obtained from aromatic vinyl, a conjugated diene, and a binding agent. Then copolymer is modified by hydroboration, wherein content of hydroxyl groups ranges from 0.5 mol.% to 12.0 mol.% relative to content of double bond of monomer unit based on conjugated diene.
EFFECT: disclosed invention enables to obtain a block copolymer having resistance to high temperatures and compatibility with asphalt.
11 cl, 2 tbl, 3 ex
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| MULTIBLOCK COPOLYMER AND SYNTHESIS METHOD THEREOF | 2005 |
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