The present invention relates to a process for suspension polymerisation of monomers comprising vinyl moieties using a reaction mixture comprising: • a quantity of a reaction medium; • a quantity of a monomer wherein the monomer comprises at least one vinyl moiety; and • a quantity of a comonomer wherein the comonomer comprises at least one acrylate moiety and at least one hydroxy I moiety. Such process results in the reduction of the quantity of suspending agents in the wastewater resulting from the process, whilst still ensuring the suspension has the desired degree of colloidal stability.
