The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, and at least a cyclic organic compound including at least a tetrathiophosphate group.

 
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> Concentrated aqueous phytopathological formulation comprising a herbicide and a betaine type surfactant

> Process for the preparation of a suspension of silica in an optionally crosslinkable silicone matrix
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