Figure 4.
SEM images at 1000× magnification of substances: (a) corn starch, (b) solvent starch, (c) CS-g-PAA (CAN/U/NaOH), (d) CS-g-PAA (KPS/U/NaOH), (e) SS-g-PAA (CAN), (f) SS(12)-g-PAA (CAN), (g) SS-g-PAA (12/CAN), (h) SS-g-PAA (KPS).
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