SYNTHESIS OF A CATION EXCHANGER FROM COMMERCIAL / RESIDUAL POLYSTYRENE

• Autores: Cjuno H., J. Américo, Arroyo C., Juan, Ale B., Neptalí, Pacheco O., Edda G., Costilla S., J. Martín, Cubas C., Roger
• Formato: artículo
• Fecha de Publicación: 2005
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/5110
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/5110
• Nivel de acceso: acceso abierto
• Materia: Polystyrene; copolymer; sulfonation; cation-exchanger; recycled; Poliestireno; copolímero; sulfonación; intercambio catiónico; reciclado

Residual commercial polystyrene samples (PScr) have been undergone to thermal decomposition processes between 433 hand 673 K (160 at 400 °C). The analyses of the distilled have confirmed that PS has been transformed into styrene with a yield from 45 to 60%. The monomer obtained has been polymerized in suspension using benzoyl peroxide like initiator and divinylbenzene (DVB) in proportions of 2, 6 and 10%. The obtained microspheres of copolymer (PS-DVB) have been sulfonated. After characterization, the results showed that 6% of DVB, presents similar characteristic than the commercial strongly acid cationic exchange resin Sybron Chemicals Inc. Ionac ® C-249.