Research Article
Homogeneous Esterification of Cellulose in the Mixture N-Butylpyridinium Chloride/Dimethylsulfoxide
Figure 4
SEM micrographs of microcrystalline cellulose (a), regenerated microcrystalline cellulose (b), grafted microcrystalline cellulose (c), kraft cellulose (d), regenerated kraft cellulose (e), and grafted kraft cellulose (f).
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(b) |
(c) |
(d) |
(e) |
(f) |