X-ray methods have been used to measure crystallinity and crystallite dimensions in cotton fibers that have been swollen in aqueous solutions of caustic soda, ethylene diamine, and zinc chloride. Different times, temperatures and concentrations of swelling agent have been used. Optimal decrystallizing conditions are given, together with re sidual crystallinities and crystallite sizes. The inter-relation between crystallinity and crystallite size is discussed.
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