Adsorbent for Di-n-butyl phthalate using chitosan beads with upper- or lower-rim substituted water-soluble calixarenes

Akihiro Yanagi, Hideyuki Otsuka, Atsushi Takahara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The complexation of di-n-butyl phthalate (DBP) by two different series of water-soluble calixarenes {p-sulfonatocalix[n]arenes [SCAn (n = 4, 6, and 8)] and calix[n]arene-O-propane-3-sulfonate [CAnPS (n = 4, 6, and 8)]} and the DBF adsorption ability of chitosan beads modified with SCAn and CAnPS were investigated. The six- and eight-membered calixarenes (SCA6, SCA8, CA6PS, and CA8PS) could include DBP in their hydrophobic cavities in the homogeneous aqueous phase. The amount of DBP adsorbed by chitosan beads modified with SCA6 was approximately five times as large as that for unmodified chitosan beads. On the other hand, the chitosan beads modified with SCA8 show the nearly the same amount of adsorbed DBP as compared to unmodified chitosan beads. In the case of the chitosan beads modified with CAnPS, no correlation was observed with the DBP inclusion capability of CAnPS.

Original languageEnglish
Pages (from-to)939-945
Number of pages7
JournalPolymer Journal
Volume37
Issue number12
DOIs
Publication statusPublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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