Effect of chemical reagents on the fine structure of cellulose. Part I. Action of diazomethane
1964; Inderscience Publishers; Volume: 2; Issue: 9 Linguagem: Inglês
10.1002/pol.1964.100020910
ISSN1542-6246
Autores Tópico(s)Advanced Cellulose Research Studies
ResumoAbstract An infrared and x‐ray study of the action of diazomethane on the fine structure of ramie and regenerated cellulose (fiber and film) has been made. It has been found that the methylation process affects the disordered regions, and also parts of the structure that are sufficiently highly ordered to be detected by x‐ray methods but whose hydrogenbond order is too low to be detected by the infrared‐deuteration technique. The effect of partial methylation on the hydrogen bonding in the noncrystalline regions is described and discussed. The conclusion drawn from the results is that diazomethane can react in the noncrystalline and the imperfectly crystalline regions, but not in the highly ordered crystalline regions.
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