Recyclable cross-linked diene elastomers comprising furanyl groups and precursors thereof

A compound having the following formula (I):

• wherein:
• m is an integer comprised between 1 and 10,000;
• B1 and B2, independently of each other, have the following formula (B):
• or the following formula (C):
• wherein:
• X is:
• a bond or
• a group of formula —NH—X1—, wherein X1 is a linear or branched (C1-C5)alkylene group;
• Y is selected from the linear and branched (C1-C5)alkylene groups;
• Z and Z′ are independently of each other —O— or —NH—;
• W and W′ are independently of each other selected from the group consisting of:
• -C(═O)—NH—Y′—, —C(═O)—Y′—, and —Y′— groups, Y′ representing a linear or branched (C1-C5)alkylene group;
• Ra is selected from the group consisting of:
• H, linear or branched (C1-C5)alkyl, and halogen atom;
• A comprises at least one repeating unit having the following formula (U1)
• and at least one repeating unit having one of the following formulae (U′1) and (U′2):
• and optionally at least one further repeating unit having the following formula (U2):
• wherein the repeating units of A are randomly distributed, and
• wherein A comprises at least 5% in number of units (U1) in relation to the total number of units (U1), (U2), (U′ 1), and (U′2);
• wherein:
• Ra is as defined above;
• Ra″ is selected from the group consisting of H, —CH═CH2, and —C(═CH2)(Ra), Ra being as defined above;
• Rb is H and Rc is B3 having the formula (C) as defined above, or Rb is B3 having the formula (C) as defined above and Rc is H;
• A′ is chosen from the following groups:
• Ra and B3 being as defined above.