Kinetics of Ag+ contained polymeric complex membranes for facilitated olefin transport

✍ Scribed by Jin-Sheng Yang; Ging-Ho Hsiue

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 179 KB
• Volume: 35
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/(sici)1099-0488(19970430)35:6<909::aid-polb5>3.0.co;2-c

✦ Synopsis

The reactions of silver ion complexes with polyethylene-graft-poly(acrylic acid) (PE-g-AA) and the olefin reversible coordinates with the PE-g-AA-Ag / complex membranes were studied. Infrared and nuclear magnetic resonance spectra confirmed the complex formation between the carboxylic acid of the PE-g-AA and the Ag / ion. Also, the Ag / ion in PE-g-AA-Ag / membrane was assumed to be a fixed carrier that adsorbs and transports olefin, thereby causing a selective olefin/paraffin separation. A theoretical model of the PE-g-AA-Ag / (olefin) complex was proposed. The coordination number of Ag / ion binding to the carboxylic acid of PE-g-AA is about 1.6 in glycerol solution. The coordination number of olefin binding to the Ag / in the PE-g-AA-Ag / complex membrane is 1. Moreover, the kinetics of olefin binding to the PE-g-AA-Ag / complex membranes were studied. The equilibrium, association, and dissociation constants were also presented.