Table 4. Branching analysis of the PE samples obtained using Ni1/MAO and Ni1/Et2AlCl at different temperatures.
| PE sample | Branches/1000C | Branching composition (%) | T m a (°C) | X c a (%) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Me | Et | Pr | Bu | Amyl | Longer branch | ||||
| PE-MAO-20 | 62 | 77.7 | 2.9 | 2.1 | 8.8 | 1.9 | 6.6 | 88.82 | 57.91 |
| PE-MAO-50 | 133 | 79.3 | 4.4 | 4.1 | 6.3 | 2.3 | 3.6 | 33.96 | 13.68 |
| PE-MAO-70 | 200 | 78.3 | 1.8 | 4.5 | 5.7 | 2.6 | 7.0 | — | — |
| PE-Et2AlCl-20 | 126 | 72.4 | 3.3 | 5.0 | 7.0 | 8.0 | 4.3 | 55.44 | 32.50 |
| PE-Et2AlCl-70 | 201 | 75.3 | 4.2 | 3.9 | 8.6 | 2.6 | 5.4 | — | — |
a
Determined by DSC; 