Table 2.
Dissolution of NCC (prepared from Whatman cotton filter aid) according to standard solution procedure 2.
| NCC material | After 48 h | After 336 h | After 336 h + freezing and thawing |
|---|---|---|---|
| Untreated | − | − | + |
| 10 kGy | + | + | + |
| 20 kGy | +/− 1 | + | + |
| 30 kGy | − | +/− 1 | + |
| 40 kGy | − | +/− 1 | + |
| 50 kGy | − | − | + |
| 60 kGy | − | − | − |
Note: 1 Turbid viscous “solution”/homogeneous suspension—no solid material left; 2 The amount of added DMAc/LiCl per weight of NCC was doubled compared to the standard procedure (1 ml DMAc/LiCl (9%) per 10 mg dry sample); “+”: dissolved; “−”: not dissolved; “+/−”: partially dissolved.