| Properties: | |
| A cellulosic fiber. | |
| Derivation: | |
| Reaction of sodium methoxide with cotton or rayon swollen in methanol. | |
| Use: | |
| Intermediate in preparing grafted fibers when combined with polyacrylonitrile, there is an average substitution of one polyacrylonitrile chain for every 100 to 300 anhydroglucose units of the cellulose. | |