The non-spherical polystyrene (PS) particles were synthesized via soap-free emulsion polymerization with styrene (St)

divinyl benzene (DVB)

methacryloyloxy trimethyl ammonium chloride (DMC) as monomers in ethanol and water mixed medium. The structure

morphology

particle size and surface potential were analyzed by FT-IR

TEM

laser particle size and potential analyzer. The results indicate that the PS particles contain three kinds of structural unit and have non-spherical morphology; With the increase of dosage of DVB

PS particle morphology tend to be more spherical

particle size and monodisperse coefficient increase gradually; With the increase of DMC dosage

PS particle size increase

monodisperse coefficient decreases

surface Zeta potential also gradually increased; An increase in the amount of KHCO3 can make the PS particles size and monodisperse coefficients increase; With the decrease of the alcohol water ratio

PS particle size decreases

while monodisperse coefficient increases gradually.