The swelling of Nigma fibres
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-- It has been found that the primary swelling of fibres prepared from solutions of cellulose curpimonium complex has an extremal dependency on the composition of the aqueous—organic precipitation bath.
-- The character of the dependence of the swelling of the finished CuC and HC fibres on composition of the mixed precipitant indicates a structural memory of the fibre during the transition CuAC → CuC → HC.
-- The extremal character of the temperature dependence of swelling of HC fibres in a solvent + precipitant mixture is probably brought about by several oppositely directed processes, including complex formation, change in solubility, ionization, etc.
KeywordsPolymer Precipitation Cellulose Complex Formation Structural Memory
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