HYDROPHILIC-HYDROPHOBIC INTERPENETRATING POLYMER NETWORKS AND DICYANATE-BASED SEMI-IPN MATERIALS

Hydrophilic-hydrophobic IPN materials of poly(acrylic acid)poly(styren e-co-acrylonitrile) were synthesized and the pervaporation characteris tics of the IPN membranes were evaluated for the separation of ethanol /water mixture. Hydrophilic-hydrophobic IPN materials of polyurethane- polystyrene were synthesized and the blood compatibility of the IPN's were measured for the biomedical application. Dicyanate-engineering pl astics semi-IPN's were prepared and the morphology and mechanical prop erties were evaluated for the high temperature composite matrix materi als.