Patent ID: 9527073
Filing Date: 2016-12-27
CPC Classification: B01D,B01J,C02F,C08F,C08J

Claim Text:
1. A process for the preparation of an inter-polymer anion exchange membrane, said process comprising: a) preparing an inter-polymer film by adding a mixture of p-methylstyrene, divinylbenzene, benzoyl peroxide and toluene into a melted mixture of binder (PE) under constant stirring at 80−95° C. for a period ranging from 3 to 5 hours followed by increasing the temperature ranging from 130 to 140° C. to distill out the solvent from the polymer mixture to obtain noodles and cutting into small pellets subsequently keeping said pellets in an oven at 75-80° C. for a period of 12 to 16 hours and after curing converting the pellets into the inter-polymer film; b) benzylic haloginating the inter-polymer film as obtained in step (a) by treating the inter-polymer film with a halogenations agent in a mole ratio from 1:1 to 2.5:1 in respect of p-methyl styrene, benzoyl peroxide and chlorinated solvent under stirring at a temperature from 75 to 80° C. for a period 5 to 10 hours under photo irradiation to obtain a halogenated inter polymer film; c) providing quaternization of brominated inter-polymer film as obtained in step (a) to obtain the inter-polymer anion exchange membrane.