What is the role of sulphur in the vulcanisation of rubber?

The role of sulphur in vulcanisation of rubber is that it reacts with the hydrocarbon chains and forms disulphide (or similar) bonds. These new bonds join two of the hydrocarbon chains together. In this manner, a mesh-like network is formed which is stronger than the separate hydrocarbon chains in natural rubber. All of this comes about by the formation of the disulphide (or trisulphide or similar) bonds. The monomer of the given compound is: Hexamethyldiamine - H₂N(CH₂)₆NH₂ and Adipic Acid - COOH(CH₂)₄COOH. Decreasing order of their intermolecular forces: Terylene > Polythene > Neoprene