FIELD: pulp industry.
SUBSTANCE: invention relates to preparation process of cellulose derivatives, namely cellulose azidonitrate. Preparation process of cellulose azidonitrate comprises reacting cellulose chloronitrate with sodium azide in molar ratio of 1:3 with stirring in aprotic polar solvent at temperature of 40–70 °C in 30–60 minutes, precipitation of obtained product, its filtration, washing and drying. Dimethylsulfoxide, dimethylformamide is used as solvent.
EFFECT: invention makes it possible to considerably shorten process duratio for cellulose azidonitrate obtaining.
3 cl, 2 dwg, 2 tbl
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Authors
Dates
2018-06-29—Published
2017-05-10—Filed