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Lignin reactions, viscosity number

Table III. Yield and Limiting Viscosity Number for Lignin-(2-propenamide) Reactions ... Table III. Yield and Limiting Viscosity Number for Lignin-(2-propenamide) Reactions ...
The alkoxylation of lignin is possible in a solvent (dimethylformamide, N-methylpyrrolidone or in liquid PO [20]). A process using a lignin-glycerol mixture (3 1) in a polyether polyol based on lignin was developed [20]. The catalysts of this reaction are KOH, but a tertiary amine, such as dimethylaminoethanol is preferred. By alkoxylation with a PO-EO mixture (e.g., 18-25% ethylene oxide EO) a totally liquid dark-brown lignin-based polyether polyol with a viscosity in the range 4,700-8,000 mPa-s at 25 °C, with an hydroxyl number... [Pg.441]

See other pages where Lignin reactions, viscosity number is mentioned: [Pg.298]    [Pg.306]    [Pg.312]    [Pg.313]    [Pg.313]    [Pg.142]    [Pg.94]    [Pg.116]    [Pg.43]    [Pg.50]    [Pg.294]    [Pg.302]    [Pg.308]    [Pg.309]    [Pg.309]    [Pg.313]    [Pg.1055]    [Pg.1219]   
See also in sourсe #XX -- [ Pg.193 ]



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Reaction number

Reactions numbering

Viscosity number

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