Research Article
Synthesis of High cis-1,4-BR with Neodymium for the Manufacture of Tires
Table 1
Molecular weight and conversion of high cis-1,4-BR.
| | °C | 0.5 mM NdV3/100 g Bd, NdV3 : DEAC = 1 : 9 mol : mol, TIBA mM | | | | | | % conv. | Mw × 103 | IP | % conv. | Mw × 103 | IP | % conv. | Mw × 103 | IP | % conv. | Mw × 103 | IP |
| | 35 | 73.7 | 500.6 | 3.2 | 80.1 | 376.4 | 2.8 | 88.1 | 284.4 | 2.0 | 90.3 | 197 | 3.5 | | 45 | 77.8 | 675.4 | 2.5 | 83.9 | 438 | 2.6 | 92 | 297.7 | 3.1 | 92.3 | 249.1 | 3.0 | | 55 | 82.3 | 811.4 | 1.8 | 85.7 | 572.6 | 1.5 | 95.3 | 314.2 | 2.4 | 94.1 | 307.6 | 6.5 | | 70 | 83.1 | 855.9 | 2.6 | 86.3 | 580.5 | 1.9 | 96 | 412.8 | 1.6 | 96.3 | 317 | 6.9 |
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