A study on acrylamide polymerization by anodic contact glow-discharge electrolysis: A novel tool

Contact glow‐discharge electrolysis (CGDE) is an unconventional electrolytic phenomenon in which a plasma is sustained by a direct current (dc) glow‐discharge between an electrode and the liquid electrolyte around it. A remarkable feature of CGDE is highly nonfaradaic chemical effects at the glow‐di...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2001-05, Vol.39 (10), p.1584-1588
Main Authors: Sengupta, Susanta K., Sandhir, Urvashi, Misra, Nira
Format: Article
Language:English
Subjects:
acrylamide polymerization
Applied sciences
contact glow-discharge electrolysis
Exact sciences and technology
nonfaradaic yields
Organic polymers
Physicochemistry of polymers
plasma/electrolyte interfacial electropolymerization
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Contact glow‐discharge electrolysis (CGDE) is an unconventional electrolytic phenomenon in which a plasma is sustained by a direct current (dc) glow‐discharge between an electrode and the liquid electrolyte around it. A remarkable feature of CGDE is highly nonfaradaic chemical effects at the glow‐discharge electrode. During anodic CGDE of an aqueous electrolyte, non‐Faradaic yields originate mainly from reactions triggered by H• and OH• radicals generated in high local concentrations near the anodic plasma/liquid electrolyte interface during the process. The radical‐generating potentiality of anodic CGDE was explored for the polymerization of acrylamide in aqueous media. The percentage of monomer conversion, rate of polymerization, charge efficiency, and viscometric average molar mass of the polymers produced were measured as functions of the quantities of electricity passed. The charge efficiency of the polymerization of acrylamide by anodic CGDE was at least 1 order of magnitude higher than that of ordinary electrochemically initiated polymerization. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 1584–1588, 2001 Anodic contact glow‐discharge electrolysis (CGDE) of aqueous solutions, which generates OH•/H• in high concentrations near the plasma/anolyte interface, polymerizes acrylamide with a charge efficiency at least 1 order of magnitude higher than that achieved by conventional electropolymerization.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.1134