PERVAPORATION PERFORMANCE OF OLIGOSILYLSTYRENE-POLYDIMETHYLSILOXANE MEMBRANE FOR SEPARATION OF ORGANICS FROM WATER

A novel silicone rubber was prepared by crosslinking silylstyrene-olig omer containing -SiH groups with divinyl-polydimethylsiloxane using Ka rstedt's catalyst at room temperature. Membranes cast from this silico ne rubber were found capable of separating chlorinated hydrocarbons an d aromatics from water containing trace amount of the organics through pervaporation (PV). Synthesis of this silylstyrene-oligomer, crosslin king it to divinyl-polydimethylsiloxane to produce the silicone rubber and preparation of membranes from this rubber are discussed. PV test results are presented.