Multifunctional synergistic macromolecular anti-oxidation stabilizer and preparation method and use thereof

A multifunctional synergistic polymer anti-oxidation stabilizer, which is characterized by the following formula:

• wherein R1 is a connection chain which is a aliphatic chain, an aromatic structural moiety or a alkyl and aromatic structurally combined chain;
• R2 is
• X is O, S, NR or NH, or —CONR—, Z is O, S, NR or NH, and X is different from Z;
• R is a alkyl chain, an alkenyl chain, an aromatic group, a sterically hindered amine or a sterically hindered phenol, R3 is a alkyl chain, an aromatic group, a sterically hindered amine or a sterically hindered phenol, R is identical to R3, or R is different from R3;
• n is a positive integer including 1, n1 is a positive integer including 1, n is identical to n1,
• or n is different from n1;
• when the stabilizer is of the formula:
• R6 and R7 are both bulky groups having at least 8 carbon atoms, and include aliphatic sulfide.