Abstract
Literature relates the membrane modification as a way to obtain affinity membranes having new mechanical and physical-chemical properties, specific to each application. One of the most used technique for the modification of the membrane characteristics consists of grafting the different reactive functions on polymeric chain: -COOH, NH2, -SO3H, -X, -OH etc. This paper offers an original variant for preparation of modified polysulphone by Friedel-Crafts acylation and the obtaining of brominated polyphenileneoxide. Keywords: polysulphone, polyphenileneoxide, reactive functions, acylation, bromination