Table 1.
Synthesis of PBLG homopolymers using Ni initiators Ni(depe) or Ni(phen) for 24 h at RT in DMF. The isolated yield (X), number average molecular weight determined by SEC–MALLS (M n, SEC), and PDI of the synthesized PBLG homopolymers are listed
| Samplea | Initiator | X (%)b | M n,SEC (g/mol)c | PDI |
|---|---|---|---|---|
| PBLG30 | Ni(depe) | 39 | 6,500 | 1.13 |
| PBLG54 | Ni(depe) | 44 | 12,000 | 1.14 |
| PBLG181 | Ni(phen) | 49 | 40,000 | 1.40 |
| PBLG235 | Ni(phen) | 62 | 52,000 | 1.41 |
| PBLG334 | Ni(phen) | 62 | 73,000 | 1.52 |
| PBLG338 | Ni(phen) | 70 | 74,000 | 1.43 |
| PBLG441 | Ni(phen) | 57 | 97,000 | 1.55 |
aThe subscripts denote the degree of polymerization determined by SEC–MALLS
bIsolated yield X is determined gravimetrically after the first precipitation and drying
c M n,SEC is determined by SEC–MALLS with dn/dc (PBLG) = 0.122 mL/g (45 °C)