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Wool has been acylated with several aliphatic acid chlorides. Hot dimethylformamide allows the reagent to pene trate the crosslinked structure of wool. Myristoyl chloride can give a 30% uptake in 0.5 h at 105°C. Increase in crosslinking by diacid chlorides is demonstrated by lower solubility in ammonia after peracetic acid oxidation, by single fiber stress-strain data, and by decreased supercontraction. Also shown are the effects of hydrocarbon chain length and acid chloride functionality on acid solubility, alkali solubility, and fabric mechanical properties. Many treatments greatly reduce laundering shrinkage.
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Koenig et al. (1975) studied this question.
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