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Preparation, characterization and ion adsorption properties of functionalized polystyrene modified with 1,4-phenylene diisocyanate and diethylenetriamine

Mokhtar Dardouri, Abir ben Hadj Amor, and Faouzi Meganem

Laboratory of Organic Synthesis, University of Carthage, Sciences Faculty of Bizerta, 7021 Jarzouna, Tunisia

 

E-mail: dardouri_2009@yahoo.fr

Abstract: In the present work, linear polystyrene (PS) was functionalized by a sulfonation reaction providing sulfonated polystyrene (PSS). Then, the PSS polymer chains were cross-linked with the 1,4- phenylene diisocyanate (PPDI) group in tetrahydrofuran (THF), which led to a PSS-PPDI polymer. The PSS-PPDI was grafted by diethylenetriamine (DETA) in a solution of THF to obtain polymer PSS-PPDI-DETA. Their structures were characterized by infrared spectroscopy (ATR-FTIR), elemental analysis (EA), differential scanning calorimetry (DSC), thermogravemetric (TGA), thermodynamic (DTA) and differential thermogravimetric (DTG) analysis. Subsequently, the obtained polymers were tested for their ability to remove some metal ions from aqueous media such as Zn2+, Cd2+ and Co2+.

Keywords: cross-linking – chelating groups – functionalization – adsorption

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2015-0178

 

Chemical Papers 69 (12) 1617–1624 (2015)

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