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- W3148993495 abstract "N-methylmorpholine-N-oxide (NMMO) hydrates are direct solvents for cellulose, used commercially in the preparation of cellulose spinning dopes for fibre and film manufacturing. The fact that the сеllulose/NMMO/water solutions can crystallise under cooling is important in the process of preparing fibres and films and in their structure formation. It is shown here that the major difference with classical polymer solutions is that the crystallisation of cellulose/NMMO/water solutions is only due to the crystallisation of the solvent, not of the cellulose. The reason of the crystallisation velocity decrease with the increase of the cellulose concentration is the reduction of the crystallisable part of the solution. The concentration of water in solutions with the same cellulose content is found to strongly influence the crystallisation velocity and the morphology of crystallised solutions. The variation of the crystallisation velocity values with the type of cellulose can be explained by different amounts of free water bound to NMMO, that depend on the cellulose origin." @default.
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- W3148993495 date "2004-01-01" @default.
- W3148993495 modified "2023-09-28" @default.
- W3148993495 title "Crystallisation of cellulose/n-methylmorpholine-n- oxide hydrate solutions" @default.
- W3148993495 hasPublicationYear "2004" @default.
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