Research Article
Aminoalkylated Merrifield Resins Reticulated by Tris-(2-chloroethyl) Phosphate for Cadmium, Copper, and Iron (II) Extraction
Table 2
TGA data for Merrifield resin and its substituted derivatives.
| | Sample | Weight loss (, %) and temperature range (, °C) | | Step I | Step II | Step III |
| | MR | = 190–325°C
= 28.83% | = 325–420°C
= 23.89% | = 420–550°C
= 45.90% |
| | MR-EDA | = 50–250°C
= 6.4% | = 250–425°C
= 45.79% | = 425–580°C
= 46.07% |
| | MR-DETA | = 50–220°C
= 7.6% | = 220–425°C
= 47.60% | = 425–600°C
= 43.50% |
| | MR-TETA | = 50–240°C
= 5.57% | = 240–435°C
= 52.33% | = 435–600°C
= 40.63% |
| | MR-EDA-TCEP | = 50–215°C
= 3.6% | = 215–430°C
= 43.29% | = 430–600°C
= 46.33% |
| | MR-DETA-TCEP | = 50–190°C
= 3.94% | = 190–425°C
= 35.10% | = 425–600°C
= 46.20% |
| | MR-TETA-TCEP | = 50–200°C
= 4.85% | = 200–430°C
= 45.13% | = 430–600°C
= 47.56% |
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