Síntesis de Poliamino Estireno a Partir de Residuos Sólidos de Poliestireno Expandido y su Potencial Aplicación Como Secuestrante de CO2

Abstract

A sample of expanded polystyrene (EPS) was isolated from a whole solid waste sample as raw material, for the synthesis of the polyamino styrene (PSNH2) in a two steps process. Initially, it was carried out the nitration of PS to obtain polynitro styrene (PSNO2) in a 10.18 % of yield according to the NO2 groups obtained. Afterwards, PSNO2 was reduced using HCl/Sn conditions, to obtain the PSNH2 in 50 % yield according to the reduction of NO2 groups of the precursor. Raw material, intermediary and the final product were completely characterized by chemical analytical techniques. With the new material in hands, it was used as solid support to CO2 capture, showing an adsorption capacity of 1.05 mmol g-1 of PSNH2.