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- W2327754611 abstract "To know the behavior of low polymers towards the ripening process of secondary cellulose acetate, and to clarify the effects of degree of polymerization, sorts of hydroxyl groups and end-groups on saponification rate, the influence of temperature and composition in acetic acid-water-sulfuric acid system on reaction rate were investigated.It seemed that the reaction is first order on ester concentration and the reversible monomolecular reaction which is independent of water, is more probable than the reversible bimolecular reaction.The reaction my be considered as the intermedeate state between the mono and bimolecular reaction or it may be due to the abnormal activity of water in acetic acid. Sulfuric acid is regarded as catalyst which only accerelates the reaction, but does not change the equilibrium.The high reaction rate in initial stage may be due to its end-groups. The activation energy derived from the temperature dependence of the reaction rate is lower than that of xylose. It is elucidated from the existence of the primary hydroxyl group." @default.
- W2327754611 created "2016-06-24" @default.
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- W2327754611 date "1955-01-01" @default.
- W2327754611 modified "2023-09-25" @default.
- W2327754611 title "ON SAPONIFICATION OF DEGRADED PRODUCTS OF CELLULOSE ACETATE" @default.
- W2327754611 doi "https://doi.org/10.2115/fiber.11.236" @default.
- W2327754611 hasPublicationYear "1955" @default.
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