Table 1.
Sample | Mw [kg mol−1] a) | Ð | NHNH2 [mol.%] b) | FTT or FPrg c) |
---|---|---|---|---|
P1-TT | 19 | 1.05 | 5.8 | 0.89 |
P1-Prg | 19.5 | 1.06 | 5.8 | 0.88 |
P2-TT | 42 | 1.06 | 5.6 | 0.90 |
P2-Prg | 42.5 | 1.06 | 5.6 | 0.89 |
P3-TT | 26.5 | 1.84 | 5.4 | 1.31 |
Molecular weights and dispersity were determined by SEC using multi-angle light scattering and refractive index detectors.
Deprotected hydrazide content was determined by TNBSA assay.
TT end group content was determined spectrophotometrically at 305 nm. The value of Prg is estimated.