Table 3.
Effect of degree of neutralization on GCP, %GCE and water absorbency.
| Grafting parameter | Degree of neutralization (%) |
|||||
|---|---|---|---|---|---|---|
| 40 | 50 | 60 | 70 | 80 | 90 | |
| GCP | 331 (13.6) | 322 (11.5) | 304 (12.5) | 293 (9.2) | 281 (10.6) | 271 (7.4) |
| % GCE | 95 (1.2) | 90 (2.2) | 85 (2.4) | 83 (2.6) | 84 (2.3) | 83 (2.6) |
| SEQ | 108 (2.5) | 123 (3.4) | 142 (2.0) | 165 (4.2) | 158 (7.6) | 112 (2.1) |
Notes: The values in parentheses are standard deviations (n = 3), reaction conditions; AA = 6.75 % w/v, MBA = 0.5 % w/v, cellulose = 2 % w/v, APS = 0.25 % w/v, temp. = 80 °C, vol. = 40 mL, time = 2 h.