FIELD: chemistry.
SUBSTANCE: present invention relates to modified polymer based on conjugated diene, as well as to a composition for an element of a tire or rubber products, containing modified polymer based on conjugated diene. Modified polymer based on conjugated diene has a unimodal shape of a molecular-weight distribution curve according to gel-penetrating chromatography and molecular-weight distribution from 1.0 to less than 1.7. The specified polymer contains a functional group obtained from a modification initiator at one end and a functional group obtained from a modifier. The modification initiator is a product of a reaction of a compound
and a metal-organic compound. The modifier is a compound of formulas 
Or
.
EFFECT: modified polymer based on conjugated diene, obtained by continuous polymerization has excellent recyclability and excellent physical properties, such as mechanical properties during stretching and viscoelastic properties.
12 cl, 5 dwg, 5 tbl, 7 ex
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Year |
Author |
Number |
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|
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|
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