Telemerisation is a chemical process that involves the addition of monomer units to a growing polymer chain, typically resulting in the formation of telechelic polymers with functional end groups. This technique allows for the controlled synthesis of polymers with specific properties and functionalities, enabling the development of materials with tailored characteristics for various applications. Telemerisation can be achieved through different polymerization methods, including step-growth and chain-growth processes, depending on the desired polymer structure.