Banca de DEFESA: LIVIA BARCELOS DE OLIVEIRA

SULFONATION OF EXPANDED POLYSTYRENE FOR PREPARATION OF ION EXCHANGE RESIN AND ITS APPLICATION IN WATER TREATMENT

SULFONATION ,  POLYSTYRENE, water treatment

In this work, we intend to carry out reactions with different degrees of sulfonation using expanded polystyrene (EPS) residues. Homogeneous sulfonation reactions will use acetylsulfate as a sulfonating agent and in heterogeneous sulfonation, sulfuric acid will be the sulfonating agent. The characterization of the products will be done using infrared spectroscopy, solubility tests, x-ray diffraction and thermogravimetry. Using infrared spectroscopy, it is expected to be possible to determine the efficiency of sulfonation in relation to the tested starting materials.