| 摘要 |
cellulose derivatives production. SUBSTANCE: hydroxyl-free alkali metal cellulose is brought into reaction with at least three alkylation reagents: A, B, and C. Reagent A is selected from group including haloacetic acids, alkali metal haloacetates, alkali metal vinylsulfonates, and vinylsulfonic acid. Reagent B has general formula R1-(OCH2CH(R2))n-P wherein R1 represents hydrogen, C2-C7-hydrocarbyl or methyl group, n=0-2, and P represents glycidyl ether residue, 3-halo-2-hydroxypropyl ether residue, 1,2-epoxy group, or halogen atom. Reagent C has general formula R3-(OCH2CH(R2))m-P wherein R3 represents C8-C30-hydrocarbyl group, m=0-10, and R2 and P have the same denotations as above. In one embodiment of invention, reagent D representing quaternary ammonium compound can be included. EFFECT: increased degree of hydrophobic substitution in absence of hydroxyalkyl groups, reduced consumption of reagents, and improved environmental condition. 11 cl, 11 ex
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