Poly(2-acrylamido glycolic acid): A water-soluble polymer with ability to interact with metal ions in homogenous phase

Rivas, Bernabé L.; Maureira, Antonio

doi:10.1016/j.inoche.2006.10.005

Cited by 24 publications

(12 citation statements)

References 26 publications

(21 reference statements)

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“…The adsorption percentages showed high removal efficiency for most metal ions even at low pH. It is known that in such conditions the ability of ligands to donate electrons and form complexes with metal ions decreases due to the protonation of the polymers (Rivas and Maureira 2007). The results agreed with this theoretical concept where the adsorption capacity is a little higher at pH 8 than pH 3.…”

Section: Resultssupporting

confidence: 75%

Development and application of cross-linked polyethylenimine for trace metal and metalloid removal from mining and industrial wastewaters

Saad¹,

Cukrowska²,

Tutu³

2011

Toxicological & Environmental Chemistry

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Pollution of water bodies by trace metals is an established problem and several studies have been conducted to deal with it. South Africa is amongst those countries whose water systems are most affected as a result of intensive mining activities. This research was dedicated to the development of an insoluble chelating polymer for use as an adsorbent for abstraction of metal ions from mining and industrial wastewaters. Polyethylenimine (PEI), well known for its metal chelating potential, was cross-linked by epichlorohydrin (ECH) in order to convert it into a water-insoluble form for direct use as an adsorbent. The binding affinity of the cross-linked polyethylenimine (CPEI) to heavy metal ions was assessed as well as its ability to be regenerated for re-use. CPEI exhibited good complexation ability to metal ions with high affinity to Cr and most divalent metal ions. The observed order of complexation was: Cr 4 Zn4 Fe 4 Ni 4 Mn 4 Pb. On the other hand, it showed very poor ability to bind oxo-anions such as SeO 3 2À and AsO 2 À which has been attributed to the unavailability of suitable functional groups to interact with these ions.

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Section: Resultssupporting

confidence: 75%

Development and application of cross-linked polyethylenimine for trace metal and metalloid removal from mining and industrial wastewaters

Saad¹,

Cukrowska²,

Tutu³

2011

Toxicological & Environmental Chemistry

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“…The increased interaction indicates that the copolymer has higher efficiency or cooperation between monomers. The comparison with the Ag + retention pattern for water‐soluble homopolymers confirms the explanation because 35% retention for poly(2‐acrylamido glycolic acid)27 and 50% retention for poly(2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid)24 can be found, whereas the copolymer P(AGA‐ co ‐APSA) reaches a maximum of 98% retention at this pH. Finally, at pH 7, when the copolymer is completely deprotonated, the retention is highest for all divalent metal ions (Co 2+ , Ni 2+ , Zn 2+ , and Cd 2+ ), with values close to 100%, except for Cu 2+ , for which it remains constant at 70%.…”

Section: Resultssupporting

confidence: 69%

Poly(2‐acrylamido glycolic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid): Synthesis, characterization, and retention properties for environmentally impacting metal ions

Rivas

Maureira

Gúzman

et al. 2008

J of Applied Polymer Sci

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Poly(2-acrylamido glycolic acid-co-2-acrylamido-2-methyl-1-propane sulfonic acid) [P(AGA-co-APSA)] was synthesized by radical polymerization in an aqueous solution. The water-soluble polymer, containing secondary amide, hydroxyl, carboxylic, and sulfonic acid groups, was investigated, in view of their metal-ion-binding properties, as a polychelatogen with the liquid-phase polymer-based retention technique under different experimental conditions. , and these were studied at pHs 3, 5, and 7. P(AGA-co-APSA) showed efficient retention of all metal ions at the pHs studied, with a minimum of 60% for Co(II) at pH 3 and a maximum close to 100% at pH 7 for all metal ions. The maximum retention capacity (n metal ion/n polymer) ranged from 0.22 for Cd 2þ to 0.34 for Ag þ . The antibacterial activity of Ag þ , Cu 2þ , Zn 2þ , and Cd 2þ polymer-metal complexes was studied, and P(AGA-co-APSA)-Cd 2þ presented selective antibacterial activity for Staphylococcus aureus with a minimum inhibitory concentration of 2 lg/mL.

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“…For carrying this study, 0.02 g of graft copolymer has been taken in 10 mL of metal ion solution of known concentration, and kept for 24 h. The strength of sorbed metal ion has been determined by titrating the remaining metal ions. The results of sorption behavior of chitosan and its grafted polymer (chitosan-g-2-acrylamidoglycolic acid) have been determined in terms of different parameters [48,49] i.e. percent ion uptake (P u ), partition coefficient (K d ), retention capacity (Q r ):…”

Section: Metal Ion Sorption Testmentioning

confidence: 99%

Synthesis and properties of a water soluble graft (chitosan-g-2-acrylamidoglycolic acid) copolymer

Yadav

Sand

Behari

2012

International Journal of Biological Macromolecules

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Poly(2-acrylamido glycolic acid): A water-soluble polymer with ability to interact with metal ions in homogenous phase

Cited by 24 publications

References 26 publications

Development and application of cross-linked polyethylenimine for trace metal and metalloid removal from mining and industrial wastewaters

Development and application of cross-linked polyethylenimine for trace metal and metalloid removal from mining and industrial wastewaters

Poly(2‐acrylamido glycolic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid): Synthesis, characterization, and retention properties for environmentally impacting metal ions

Synthesis and properties of a water soluble graft (chitosan-g-2-acrylamidoglycolic acid) copolymer

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