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The thermal degradation of cellulose triacetate—I. The reaction products

✍ Scribed by A. Scotney

Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
596 KB
Volume
8
Category
Article
ISSN
0014-3057

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✦ Synopsis

The fractionated volatile products arising from the stepwise thermal degradation of cellulose triacetate in vaeuo are analysed by gas-solid chromatography, mass spectrometry, i.r. and NMR spectroscopy, and chemical tests. Gas evolution data resemble those reported for the thermal degradation of cellulose in vacuo; early evolution of large quantities of oxides of carbon indicates extensive breakdown of the pyranose rings. Acetic acid, attributed to thermal deacetylation reactions in the polymer chain, is a major product, and a portion undergoes further decomposition to keten and water. The tarry material appears to be a mixture of unsaturated mono-and diacetylated monosaccharides and oligomers.

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