Wool Modification with Acid Anhydrides in Dimethylformamide

Abstract

The molecular structure of wool was modified by reactions with alkenylsuccinic and other anhydrides. This internal modification was accomplished under anhydrous condi tions in a special medium, dimethylformamide. Acid and alkali solubilities of the modi fied wool fabrics were interpreted as changes of the acid-base character of the wool and also in terms of' the anhydrite structure. Wool modified with long-chain alkenylsuccinic anhydrides had decreased strength but increased resistance to acid conditions and laundering shrinkage.