A hydrocarbon polymer comprising two dithiocyclocarbonate end groups, said hydrocarbon polymer being of formula below: wherein: • each carbon-carbon bond of the denoted chain is a double bond or a single bond; • groups R1, R2, R3, R4, R5, R6, R7 and R8, which may be identical or different, are chosen from a hydrogen atom, a halogen atom, an alkyl group, a heteroalkyl group, an alkoxycarbonyl group or a heteroalkoxycarbonyl group, • at least one of groups R1 to R8 possibly forming part of the same saturated or unsaturated hydrocarbon-based ring or heterocycle, with at least another from groups R1 to R8; • at least one of pairs (R1,R2), (R3,R4), (R5,R6) and (R7,R8) possibly being an oxo group; • x and y, which may be identical or different, are integers ranging from 0 to 5; • groups R9, R10, R11 and R12, which may be identical or different, are chosen from a hydrogen atom, a halogen atom, an alkyl group, a heteroalkyl group, an alkoxycarbonyl group or a heteroalkoxycarbonyl group, • at least one of groups R9 to R12 possibly forming part of the same saturated or unsaturated hydrocarbon-based ring or heterocycle, with at least another from groups R9 to R12; • the group R13 is CH 2, O, S, C(=O) or NR 0, R 0 being an alkyl group comprising from 1 to 22 carbon atoms; and • n is an integer greater than or equal to 2 and m is an integer greater than or equal to 0, the molar ratio m:n ranging from 0:100 to 90:10, n and m being such that the number-average molar mass Mn of the hydrocarbon polymer of formula ranges from 500 to 50000 g/mol, and the polydispersity of the hydrocarbon polymer of formula ranges from 1.0 to 3.0; • F1 is represented by the following formula: • and F2 is represented by the following formula: wherein: A is a C1-C9 alkylene group; Z is such that the divalent group -A-Z- is the group -A-C(=O)O- or -A-OC(=O)- and preferably -A-OC(=O)-; p1 and p2, which may be identical or different, each represent an integer equal to 0, 1, 2 or 3. • each carbon-carbon bond of the denoted chain is a double bond or a single bond; • groups R1, R2, R3, R4, R5, R6, R7 and R8, which may be identical or different, are chosen from a hydrogen atom, a halogen atom, an alkyl group, a heteroalkyl group, an alkoxycarbonyl group or a heteroalkoxycarbonyl group, • at least one of groups R1 to R8 possibly forming part of the same saturated or unsaturated hydrocarbon-based ring or heterocycle, with at least another from groups R1 to R8; • at least one of pairs (R1,R2), (R3,R4), (R5,R6) and (R7,R8) possibly being an oxo group; • x and y, which may be identical or different, are integers ranging from 0 to 5; • groups R9, R10, R11 and R12, which may be identical or different, are chosen from a hydrogen atom, a halogen atom, an alkyl group, a heteroalkyl group, an alkoxycarbonyl group or a heteroalkoxycarbonyl group, • at least one of groups R9 to R12 possibly forming part of the same saturated or unsaturated hydrocarbon-based ring or heterocycle, with at least another from groups R9 to R12; • the group R13 is CH 2, O, S, C(=O) or NR 0, R 0 being an alkyl group comprising from 1 to 22 carbon atoms; and • n is an integer greater than or equal to 2 and m is an integer greater than or equal to 0, the molar ratio m:n ranging from 0:100 to 90:10, n and m being such that the number-average molar mass Mn of the hydrocarbon polymer of formula ranges from 500 to 50000 g/mol, and the polydispersity of the hydrocarbon polymer of formula ranges from 1.0 to 3.0; • F1 is represented by the following formula: • and F2 is represented by the following formula: wherein: A is a C1-C9 alkylene group; Z is such that the divalent group -A-Z- is the group -A-C(=O)O- or -A-OC(=O)- and preferably -A-OC(=O)-; p1 and p2, which may be identical or different, each represent an integer equal to 0, 1, 2 or 3. A is a C1-C9 alkylene group; Z is such that the divalent group -A-Z- is the group -A-C(=O)O- or -A-OC(=O)- and preferably -A-OC(=O)-; p1 and p2, which may be identical or different, each represent an integer equal to 0, 1, 2 or 3.