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Cu(II) immobilization in AAc/NIPAAm-based polymer systems synthesized using ionizing radiation

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Title: Cu(II) immobilization in AAc/NIPAAm-based polymer systems synthesized using ionizing radiation
Authors: Burillo, Guillermina burillo@nucleares.unam.mx, Castillo-Rojas, Susana1, Arrieta, Herzaín1
Source: Radiation Physics & Chemistry. Mar2012, Vol. 81 Issue 3, p278-283. 6p.
Subjects: Copper ions, Polymers, Ionizing radiation, pH effect, Monomers, Acrylamide synthesis, Acrylic acid
Abstract: Abstract: Polymer systems based on the pH-responsive monomer acrylic acid (AAc) and the thermosensitive monomer N-isopropylacrylamide (NIPAAm) were synthesized using gamma radiation. Three systems were synthesized: a comb-type hydrogel structure (grafting of NIPAAm onto crosslinked PAAc), a binary graft of both monomers onto a polypropylene (PP) film synthesized by a one-step method and a binary graft prepared by a two-step method. The binary graft systems were characterized by swelling behavior and the reversibility of water uptake. The three systems were compared with respect to their Cu(II) adsorption quantity, reversibility and time response. The binary graft system synthesized in one step exhibited the best adsorption response. The comb-type hydrogel required 150h to reach its maximum swelling percentage, and the binary graft systems on polypropylene (PP) prepared by the one- and two-step irradiation-based methods required 10 and 30min, respectively. The optimum pH range for Cu(II) immobilization was 5–6 in the binary graft system synthesized in one step. The maximum adsorption capacity for Cu(II) in the (PP-g-(AAc/NIPAAm)) (45% graft) was found to be 337mgg−1, and the adsorption followed the Freundlich model. [Copyright &y& Elsevier]
Copyright of Radiation Physics & Chemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 70155410
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  Data: Cu(II) immobilization in AAc/NIPAAm-based polymer systems synthesized using ionizing radiation
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  Data: <searchLink fieldCode="AR" term="%22Burillo%2C+Guillermina%22">Burillo, Guillermina</searchLink><i> burillo@nucleares.unam.mx</i><br /><searchLink fieldCode="AR" term="%22Castillo-Rojas%2C+Susana%22">Castillo-Rojas, Susana</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Arrieta%2C+Herzaín%22">Arrieta, Herzaín</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Radiation+Physics+%26+Chemistry%22">Radiation Physics & Chemistry</searchLink>. Mar2012, Vol. 81 Issue 3, p278-283. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Copper+ions%22">Copper ions</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Ionizing+radiation%22">Ionizing radiation</searchLink><br /><searchLink fieldCode="DE" term="%22pH+effect%22">pH effect</searchLink><br /><searchLink fieldCode="DE" term="%22Monomers%22">Monomers</searchLink><br /><searchLink fieldCode="DE" term="%22Acrylamide+synthesis%22">Acrylamide synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Acrylic+acid%22">Acrylic acid</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Polymer systems based on the pH-responsive monomer acrylic acid (AAc) and the thermosensitive monomer N-isopropylacrylamide (NIPAAm) were synthesized using gamma radiation. Three systems were synthesized: a comb-type hydrogel structure (grafting of NIPAAm onto crosslinked PAAc), a binary graft of both monomers onto a polypropylene (PP) film synthesized by a one-step method and a binary graft prepared by a two-step method. The binary graft systems were characterized by swelling behavior and the reversibility of water uptake. The three systems were compared with respect to their Cu(II) adsorption quantity, reversibility and time response. The binary graft system synthesized in one step exhibited the best adsorption response. The comb-type hydrogel required 150h to reach its maximum swelling percentage, and the binary graft systems on polypropylene (PP) prepared by the one- and two-step irradiation-based methods required 10 and 30min, respectively. The optimum pH range for Cu(II) immobilization was 5–6 in the binary graft system synthesized in one step. The maximum adsorption capacity for Cu(II) in the (PP-g-(AAc/NIPAAm)) (45% graft) was found to be 337mgg−1, and the adsorption followed the Freundlich model. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Radiation Physics & Chemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.radphyschem.2011.11.010
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        Text: English
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        Type: general
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      – SubjectFull: Ionizing radiation
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      – SubjectFull: Monomers
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      – SubjectFull: Acrylamide synthesis
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      – SubjectFull: Acrylic acid
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      – TitleFull: Cu(II) immobilization in AAc/NIPAAm-based polymer systems synthesized using ionizing radiation
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              Text: Mar2012
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