Abstract: The present invention relates to a process for the preparation of substituted thiolactones of formula (I) or of substituted thiolactones of formula (I?) which are capable of being obtained by the implementation of this process, and to the use of substituted thiolactones of formula (I) or of formula (I?) in the preparation of polymers or in the functionalization of particles, of flat surfaces or of polymers.

Abstract: The invention relates to a method for preparing substituted thiolactones of formula (I), new substituted thiolactones of formula (I?) that can be obtained by carrying out said method, and the use of substituted thiolactones of formula (I) or (I?) for synthesizing polymers or functionalizing surfaces or polymers.

Abstract: The invention relates to a novel polyphosphorus-based chain-end thiol-functionalized polymer, the polymer chain of which comprises units bearing at least one pendant phosphonate function and/or at least one pendant phosphonic function along the chain. This novel polymer is quite particularly suited to participating in a thiol-ene coupling reaction, which affords the possibility of grafting the polyphosphorus-based polymers onto diene polymers, for example.

Abstract: The invention relates to a method for the synthesis of a novel diene polymer with a high content of phosphorus-based functions by radical grafting of a polyphosphorus-based polymer bearing a chain-end thiol function onto a diene polymer according to the following steps: a) bringing together, with stirring, at least one diene polymer in solution and at least one polyphosphorus-based polymer bearing a chain-end thiol function in solution, b) heating the homogeneous reaction mixture obtained in the previous step to the grafting reaction temperature, and c) adding the radical initiator concomitantly with either of steps a) and b) or once the grafting reaction temperature has been reached.