Effect of Partial Acetylation on Jute

Details Effect of Partial Acetylation on Jute Effect of Partial Acetylation on Jute

May 1951

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1951natur.167..775m&link_type=abstract

Nature, Volume 167, Issue 4254, pp. 775 (1951).

Physics

Scientific paper

PARTIAL acetylation as a means of arresting the development of the yellow to brown colour, produced by photochemical reactions on irradiating bleached jute with a mercury vapour lamp, has been suggested by Peill1, and Callow and Speakman2. The development of this undesirable shade in untreated and bleached jute has been postulated by the latter as mainly due to a sequence of reactions involving the lignin molecule, presumably through the formation of o-phenols and subsequent conversion to o-quinones. These authors are also of opinion that some discoloration may be caused by the polymerization of furfural liberated from pentosans, or result from condensation reactions between furfural and phenolic groups of lignin. On acetylation, however, the phenolic and alcoholic hydroxyl groups in jute are blocked, and consequently the possibility of the above reactions leading to discoloration is avoided.

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