| Title: | "[Evaluation of Adsorption Characteristics of a Fibrous Adsorbent Containing Zwitter-Ionic Functional Group, Targeting Organic Acids]" |
| Author(s): | Nakazawa A; Tang N; Inoue Y; Kamichatani W; Katoh T; Saito M; Obara K; Toriba A; Hayakawa K; |
| Address: | "Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Pharmaceutical Sciences, Kanazawa University, Japan" |
| ISSN/ISBN: | 0387-821X (Print) 0387-821X (Linking) |
| Abstract: | "Diallylamine-maleic acid copolymer (DAM)-nonwoven fabric (DAM-f), a fibrous adsorbent, contains DAM with zwitter-ionic functional groups and forms a hydration layer on the surface. The aim of this report was to evaluate the adsorption selectivity of DAM-f to semi-volatile organic acid (C1-C5). In the aqueous phase, formic acid dissolved in the hydration layer bound to the imino group of DAM-f due to anion exchange interaction. In the gas phase, the adsorption amounts of organic acids increased with the exposure time. Moreover, the adsorption rate constants correlated with the air/water partition coefficients (log K(aw)) for formic acid, propionic acid, butyric acid, valeric acid and isovaleric acid, except for acetic acid. These results indicate that DAM-f is highly selective to hydrophilic compounds which easily move from the air to the hydration layer of DAM-f" |
| Keywords: | *Acetic Acid Adsorption Air Allylamine/chemistry Anions *Butyric Acid Formates Gases Hemiterpenes Hydrophobic and Hydrophilic Interactions Ion Exchange Maleates/chemistry *Pentanoic Acids Polymers/chemistry *Propionates Water; |
| Notes: | "MedlineNakazawa, Akira Tang, Ning Inoue, Yoshinori Kamichatani, Waka Katoh, Toshifumi Saito, Mitsuru Obara, Kenji Toriba, Akira Hayakawa, Kazuichi jpn Japan 2017/03/24 J UOEH. 2017; 39(1):69-74. doi: 10.7888/juoeh.39.69" |
