Regioselective bromination at methylol groups in wool keratin and cotton cellulose [Chemical improvement of the properties and performance of natural fibers]

Useful properties are imparted to textile fabrics by regioselective derivatization without significantly impairing their quality. Woven cotton and wool fabrics and a woolen knit were brominated at the primary hydroxyl (C-6 and L-serine residue, respectively) with Hanessian's N-bromosuccinimide/...

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Bibliographic Details
Published in:Textile research journal 1981-12, Vol.51 (12), p.777-781
Main Author: Ziderman, Irving I.
Format: Article
Language:English
Subjects:
Bromination
Bromine
Cotton
Fabrics
Laundering
Sodium bromides
Textiles
Wool
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Summary:Useful properties are imparted to textile fabrics by regioselective derivatization without significantly impairing their quality. Woven cotton and wool fabrics and a woolen knit were brominated at the primary hydroxyl (C-6 and L-serine residue, respectively) with Hanessian's N-bromosuccinimide/triphenylphosphine reagent, giving a degree of substitution of 5% and 94%, respectively, for cotton and wool. Addition of sodium bromide to the reaction mixture did not enhance the bromine content of the product. The brominated textiles were of excellent quality and stability, and no odor was detected. 72% of the bromine incorporated into the wool was stable to five drycleaning cycles. Ten aqueous launderings removed all the bromine from the wool. The brominated fabrics exhibited a diminished flammability. The brominated wool was moth-resistant.
ISSN:0040-5175
1746-7748
DOI:10.1177/004051758105101206