Modification of polystyrene properties through grafting with N‐vinylcarboxamido‐2‐methylpropane sulfonic acid monomer

Abstract Polystyrene (PS) possesses good mechanical properties, but its surface is relatively 
inert and hydrophobic. Grafting of N-vinylcarboxamido-2-methylpropane sulfonic acid 
(VCMP) is useful to hydrophilize the PS surface. Grafting was performed using benzoyl 
peroxide (BPO) as an initiator in toluene: methanol solvent mixture (3: 1 volume ratio). The 
influence of the main factors on grafting, such as temperature, time, concentrations of 
initiator, PS and VCMP, has been studied. The results show that the initial rate of ...