Partial Acetylation of Cotton Cellulose by Ketene
β Scribed by Hamalainen, Carl.; Reid, J. David.
- Book ID
- 121439655
- Publisher
- American Chemical Society
- Year
- 1949
- Weight
- 599 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0019-7866
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π SIMILAR VOLUMES
## Abstract The distribution of substituents in a partially acetylated cellulose (DS 2.4) has been determined. __0__βAcetyl groups were replaced by __0__βmethyl groups by using methylsulphinyl sodium and methyl iodide on a product, in which the original free hydroxyl groups had been protected by re
## Abstract The nature and behavior of free radicals induced in acetylated cotton celluloses irradiated with Ξ³βrays have been studied by electron spin resonance (ESR) spectroscopy. Dehydrogenation and deacetylation appear to be responsible for the free radicals observed from samples irradiated at 7
## Abstract Cotton cellulose in the form of scoured yarn was acetylated at 15Β°C. in a mixture of isopropyl acetate and acetic anhydride in the presence of perchloric acid catalyst to various degrees from 1.1 to 2.9 acetyl groups per anhydroglucose unit. For comparative purposes some of the yarn was