Polystyrene resin of containing double bond, and preparation method

[0018] Take 1g of polystyrene (cross-linking degree: 80% DVB, particle size: 5μm) into a three-neck reaction flask, add anhydrous dichloromethane to swell, stir to make it evenly dispersed, add 1ml of acryloyl chloride dropwise, blow in nitrogen, and stir 1.95 g of aluminum trichloride was added under the pressure, and the reaction was carried out at normal temperature and pressure for 4 hours. That is, a double bond-containing polystyrene resin having a double bond content of 0.93 mmol / g was obtained.

[0020] Take 1g of polystyrene (cross-linking degree: 7% DVB, particle size: 20μm) into a three-necked reaction flask, add anhydrous dichloroethane to swell, stir to make it evenly dispersed, add dropwise 1ml of acryloyl chloride, and blow in nitrogen, Add 0.64 g of aluminum trichloride under stirring, and react at room temperature and pressure for 1 hour. That is, a double bond-containing polystyrene styrene resin having a double bond content of 2.50 mmol / g was obtained.

[0022] Take 1g of polystyrene (cross-linking degree: 55% DVB, particle size: 20μm) into a three-necked reaction flask, add anhydrous nitrobenzene to swell, stir to make it evenly dispersed, add 1ml of acryloyl bromide dropwise, and blow in nitrogen. Add 0.3ml SnCl with stirring 4 , React at room temperature and pressure for 15 minutes. That is, a double bond-containing polystyrene resin having a double bond content of 2.17 mmol / g was obtained.