SYNTHESIS AND CHARACTERIZATION OF A NEW FAST SWELLING POLY(EPMA??CO??METAC) AS SUPERABSORBENT POLYMER FOR ABSORBENT


Karakoyun N., Ilgın P., GÜR A.

The International Conference on Engineering and Natural Sciences (ICENS) 2016, Sarajevo, Bosnia And Herzegovina, 24 - 28 May 2016, vol.0, no.0, pp.690

  • Publication Type: Conference Paper / Summary Text
  • Volume: 0
  • City: Sarajevo
  • Country: Bosnia And Herzegovina
  • Page Numbers: pp.690

Abstract

A novel superabsorbent polymer poly(2,3-epoxypropyl methacrylate-co-2-(methacryloyloxy)ethyl
trimethyl ammonium chloride), p(EPMA-co-METAC), was prepared simply by free radical aqueous
copolymerization reaction of 2,3-epoxypropyl methacrylate (EPMA) and 2-(methacryloyloxy)ethyl
trimethyl ammonium chloride (METAC) using N,N??-methylenebisacrylamide (MBA) as a cross-linking
agent and ammonium persulfate (APS) as a free radical initiator. The chemical structures of hydrogel
were confirmed by FTIR and elemental analysis. The swelling behavior of the hydrogel samples was
investigated under different experimental conditions such as time, pH, ionic strength and different
media. In the second part of this study, the superabsorbent hydrogels were tested for the removal of an
anionic dye, i.e., Coomassie Brilliant Blue G-250 (CBB), a molecule having a marked amphiphilic
character, from aqueous environment. Finally, isotherm adsorption data of dye on hydrogels were
modeled according to Langmuir and Freundlich isotherm models. The results revealed that the
experimental data was correlated by both of them. Also, the kinetic parameters for the adsorption
process of the dye were investigated based on the different kinetic models such as pseudo-first-order
and second-order models and the adsorption kinetics followed well the pseudo-second-order model.
Novel superabsorbent polymer samples also show good anionic dye absorbency and excellent swelling
ability. As a result, p(EPMA-co-METAC) hydrogel appeared to be suitable for the removal of CBB from
aqueous solutions.