Given that polycatenanes are a relatively recent field of study, the properties of these materials are not yet fully explored and understood. The type of bonds that characterize the whole structure (covalent, non covalent or mechanical bonds), the degree of mobility of the chain, the interactions between different chains and the fraction of voids of the catenanes are all factors that contribute to the final properties. As they can be strictly related to the family of Metal Organic Frameworks, the catenanes share all the potential applications of this class of compunds. Among these, there are applications in biomedicine, catalysis, as conducting bridges or in electronic devices, sensing or in very recent and rising fields like molecular machines.