Al~tract--The electrochemical polymerization of adipic acid via the Kolbe synthesis was investigated in various solvent systems. High melting insoluble polymers were obtained; they contained, besides the hydrocarbon chains obtained from the free radical Kolbe mechanism 2no -(nHOOC(CH:hCOOH , n "(CH:
Electrochemical polymerization of dicarboxylic acids—III. Quantitative results in the electrolysis of adipic acid
✍ Scribed by A. Gozlan; A. Zilkha
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 645 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
The electrochemical polymerization of adipic acid via the Kolbe synthesis was investigated in methanol, methanol-pyridine and methanol-acetonitrile mixtures. The complex variety of products formed from C4 and higher hydrocarbons, methyl esters, methyl ethers, lactones, oligomers and polymers in the various solvents were analyzed and compared. Generally the major products were the hydrocarbons and the polymers; the yield of the former decreased with increasing pyridine concentration and that of the latter increased.
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The electrochemical polymerizations of suberic and azelaic acids were investigated in methanol: pyridine (1:1) and the results compared with those previously obtained for adipic and sebacic acids, to find out the effect of chain length between the carboxyl groups on formation of polymer and oligomer
## Ring-opening polymerization of &-caprolactone in the presence of dicarboxylic acids Unfortunately, the second author's name has been misprinted in the above publication.
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Voltammetric curves of the complex ion obtained under these conditions ie CCtiWW,O~~~HCOQl '+ show two electrode processes. The first one is responsible for electroreduction to chromium(II) when the other to metallic chromium. Kinetic data and cyclic voltammetry experiments confirm irreversibility o