Can I read Preparation of IPN-type stimuli-Responsive heavy-Metal-Ion adsorbent gel on EtoBox?

Preparation of IPN-type stimuli-Responsive heavy-Metal-Ion adsorbent gel by Keiji Yamashita; Takashi Nishimura; Mamoru Nango is a Materials Science article available to read on EtoBox.

What is Preparation of IPN-type stimuli-Responsive heavy-Metal-Ion adsorbent gel about?

## Abstract We apply the interpenetration network (IPN) gel of poly(__N__‐isopropylacrylamide) (PNIPAm) and poly(sodium acrylate) (PNaAAc) to the stimuli‐responsive heavy‐metal‐ion adsorbent system. In the IPN gel system, PNIPAm and PNaAAc units are expected to behave independently. Therefore, the IPN gel of PNIPAm exhibits a thermosensitive volume–phase transition behavior in spite of the presence of polyelectrolytes like PNaAAc that are well known to prevent PNIPAm from shrinking when above their lower critical solution temperature (LCST). NIPAm‐co‐NaAAc copolymer gel (copoly gel) absorbed water and adsorbed Cu(II) ions sufficiently but did not exhibit the volume–phase transition behavior at all in the Cu(II) ion adsorption‐condition. On the other hand, the IPN gel consisting of PNIPAm and PNaAAc exhibited the volume–phase transition behavior in the adsorbtion‐condition. That is, the IPN gel adsorbed Cu(II) ion sufficiently below its LCST but not above the LCST. We could thermally control the adsorption abilities for heavy‐metal ions by using the IPN gel system. The swelling IPN gel, which adsorbed Cu(II) ions, suddenly shrank when the temperature rose above the LCST. The IPN gel

Who reads Preparation of IPN-type stimuli-Responsive heavy-Metal-Ion adsorbent gel?

Author

Keiji Yamashita; Takashi Nishimura; Mamoru Nango

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1042-7147)

Published

2003

Language

EN

Field

Materials Science (Physical Sciences)