Abstract Modifying environmentally harmful waste polystyrene foam as an efficient recyclable adsorbent for organic dyes is important. Amidation modified (PS-SD) was prepared by the Friedel-Crafts reaction and N,N'-dicyclohexylcarbodiimide (DCC) dehydration condensation of foam. PS-SD had highly removal performance in large volume water sample solutions, equilibrium achieved 0.5 h. The maximum a...

In this work membrane (proton exchange membrane) by using the blend polymers (polyethersulfone (PES), Expandable polystyrene (EPS), polyvenylidinefluride polymer (PVDF)) were prepared. This was modified adding organic sulfonic acid to solution precasting process, and sulfonated dipping it in diluted sulfuric (H2SO460%) post casting process. The sulfonation confirmed via FTIR spectra. characteri...

• Thermogravimetric analysis of individual plastics and mixed under N 2 , CO mixture /CO atmospheres. Kinetic parameter for all samples were identified by using modified Coats-Redfern technique. in the reacting gas reduced amount residue. Low activation energy was atmosphere with a ratio 7:3. It is important to understand influence pyrolysis on thermal degradation waste plastics. In this study,...

Polystyrene (PS) is the most widely used plastic polymer. It mainly to produce disposable products. Due its resistance degradation, PS can remain in environment for a long time. Its mechanical, physical and biological actions determine release of smaller fragments, which are able penetrate organisms accumulate target organs. Fertilized Danio rerio eggs were exposed concentrations 10 20 mg/L flu...

Stable nanoparticle dispersion in aqueous solutions was obtained with partially sulfonated polystyrene. The hydrophobic association of the backbone chains and phenyl groups is balanced by the electrostatic repulsion of the sulfonate groups on the particle surface. The size distribution of the sulfonated polystyrene particles in relation to concentration, degree of sulfonation and chain length, ...