síntese de poliestireno sulfonado para aplicações no tratamento de água produzido a partir de copos e bandejas descartadas de poliestireno synthesis of poly(styrene sulfonate) from discarded polystyrene cups and expanded trays for application on water treatment
;Guimes Rodrigues Filho;Rosana M. N. de Assunção;Flavia C. A. Marques;Natália G. Corrente;Carla da Silva Meireles;Daniel A. Cerqueira;Alan S. Landim
greece and rome2008Vol. 31pp. 2004-2008
111
filho2008qumicasntese
Abstract
In the present paper, the use of poly(styrene sulfonate) (PSS), produced from discarded polystyrene materials through heterogeneous and homogeneous processes, was investigated. The use of PSS for water treatment, using a kaolin suspension as wastewater model, reduced water turbidity for all the employed materials when compared to the blank analysis, without PSS. The most efficient polyelectrolyte was PSS cups obtained by homogeneous route. The same behavior was observed for real system. The homogeneous PSS cups showed a balance between a moderate molecular weight and high anionic character that improved flocks formation and water removal turbidity.