g styrene 240 g butyl acylate 60 g tert butyl acrylate 10 g cuprous bromide and 20 g n n u2032 n u2033 pmdeta into a 4 l reaction bulb and disperse them at a high speed then degas and heat it up to 80 u00b0 c to start reaction after 5 h lower the temperature to be lower than 40 u00b0 c and add the materials into the aqueous solution of 6000 g water and 10 g sodium dodecyl benzene sulfonate sdbs then disperse it for 2 h at 18000 rpm and the second emulsion b1 with oxidized petroleum wax is produced the particle diameter of the emulsion is 212 nm add 300 g pp g mah into a high speed dispersion machine and then add 500 g n and n dimethylformamide and disperse them in the high speed dispersion machine for 15 min then add 40 g bromopropionyl bromide after 1 h reaction filter wash and dry the product and the modified pp g mah is produced add 300 g modified petroleum wax 1000 g methanol 500 g styrene 150 g butyl acylate 50 g tert butyl acrylate 10 g cuprous bromide and 20 g n n u2032 n u2033 pmdeta into a 4 l reaction bulb and disperse them at a high speed then degas and heat it up to 80 u00b0 c to start reaction after 5 h lower the temperature to be lower than 40 u00b0 c and add the materials into the aqueous solution of 5000 g water and 10 g sodium dodecyl benzene sulfonate sdbs then disperse.