Article: Covalent Modification of the Wool Fiber Surface: Removal of the Outer Lipid Layer

Abstract This investigation provided a comparative assessment of strategies for the removal of 18-methyleicosanoic acid (18-MEA), and other surface bound lipids enveloping the wool fiber surface, by chemical and physical cleavage of the thioester bond. The removal of this lipid layer reveals an underlying proteinaceous layer, exposing functional chemical groups available for covalent attachment of new molecular or nanoparticulate entities by chosen treatments. Lipid removal treatments employing methanolic potassium hydroxide, f-butoxide in i-butanol, and aqueous hydroxylamine and a physical atmospheric pressure glow discharge (APGD) plasma treatment were compared. Treated wool fabrics were ...

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