Self-cleaning resins

Vaclav Janout, Sasha B. Myers, Richard A. Register, Steven L. Regen

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

This paper introduces a fundamentally new concept in adsorbents, whereby the sorption of an aqueous solute by a cross-linked polymer is controlled by a gel to liquid-crystalline phase transition. To demonstrate proof of principle, a bilayer forming surfactant, N,N-dioctadecyl,N,N-dimethylammonium bromide (DODAB) has been immobilized onto a cation exchange resin, Dowex 50WX2, and its thermotropic phase behavior and solute-adsorption properties have been investigated. Examination by a combination of differential scanning calorimetry and X-ray scattering has confirmed the retention of a gel to liquid-crystalline phase transition of the surfactant, occurring between 296 and 318 K. Adsorption measurements that were made for 4-chlorotetrahydropyran, 1,2-dichloroethane, and benzyl alcohol have also confirmed uptake by the resin in the liquid-crystalline phase and release in the gel phase.

Original languageEnglish (US)
Pages (from-to)5756-5759
Number of pages4
JournalJournal of the American Chemical Society
Volume129
Issue number17
DOIs
StatePublished - May 2 2007

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Self-cleaning resins'. Together they form a unique fingerprint.

Cite this