Rates of disproportionation of 0.015-0.4 mM aqueous glyoxal to glycolic acid were measured a t 0.24-75 mM NaOH and constant ionic strength, leading to the empirical rate expression r = (aJOH-1 + a,[OH~l')[GTl/(l + aJOH 11, where [GTl is the total glyoxal concentration. These results were confirmed i
Kinetic gelation of the polyacrylamide-glyoxal system
β Scribed by A. Omari
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 414 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0032-3861
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Equilibria and rates of interconversion between monomeric and dimeric glyoxal were measured in aqueous solution. The equilibrium constant [G2]/[GJ2 was 0.56 M-' at 25"C, and was hardly affected by changes of ionic strength and pH but increased rapidly with increase of temperature. The rate of depoly
Investigations were focused on the kinetics and thermodynamics of nylon 6 fiber dyeing with the hydrogen peroxide-glyoxal redox system. We tried to understand thoroughly the difference between the new redox and the conventional dyeing system, since the mechanism of redox dyeing is a combination of f
The reaction rates of Cr(III) oligomers with partially hydrolyzed (PAAm) polyacrylamide were measured. The oligomers were prepared in relatively pure form using liquid chromatography, allowed to react with polymer, quenched, and then separated using equilibrium dialysis. In the pH range of 4-5, Cr(I