Table 2.
SEC, thermal and mechanical characterization of the degradable elastomers synthesized by step-growth polymerization incorporating 2.
| % cisa | % incorporation of 2 |
Mn (kDa) |
Mw (kDa) |
ÐM | Tg (ºC) | Tm (ºC) |
E (MPa) |
εbreak (%) |
UTS (MPa) |
|---|---|---|---|---|---|---|---|---|---|
| 80 | 9.0 | 29.7 | 111.2 | 3.74 | 1.7 | 71.4 | 33.1 ± 3.3 | 1457 ± 312 | 34.9 ± 8.7 |
| 79 | 18.7 | 35.2 | 110.8 | 3.15 | −0.7 | 50.0 | 21.1 ± 0.7 | 1750 ± 163 | 30.1 ± 5.5 |
| 79 | 49.4 | 52.5 | 123.7 | 2.36 | −0.6 | — | 2.2 ± 0.4 | 2161 ± 158 | 18.9 ± 3.1 |
| 78 | 58.4 | 57.8 | 155.6 | 2.69 | −2.7 | — | 1.8 ± 0.4 | 3154 ± 330 | 14.6 ± 1.3 |
| 78 | 79.1 | 29.2 | 132.7 | 4.55 | −2.3 | — | 1.9 ± 0.2 | 2805 ± 149 | 10.9 ± 0.3 |
| 79 | 100 | 35.9 | 112.2 | 3.12 | −5.1 | — | 1.6 ± 0.2 | 2245 ± 1135 | 0.8 ± 0.4 |
| 62 | 8.7 | 34.2 | 117.1 | 3.42 | −8.1 | — | 2.1 ± 0.3 | 1088 ± 320 | 8.9 ± 3.5 |
| 80 | 9.0 | 29.7 | 111.2 | 3.74 | 1.7 | 71.4 | 33.1 ± 3.3 | 1457 ± 312 | 34.9 ± 8.7 |
| 79 | 49.4 | 52.5 | 123.7 | 2.36 | −0.6 | — | 2.2 ± 0.4 | 2161 ± 158 | 18.9 ± 3.1 |
| 72 | 19.0 | 43.0 | 127.3 | 2.96 | −0.2 | 49.4 | 3.2 ± 0.7 | 2158 ± 247 | 17.6 ± 3.9 |
aDetermined by comparison of 1H NMR spectroscopy integration of cis peaks at δ = 5.8 ppm and 7.1 ppm and trans peaks at δ = 5.7 ppm and 7.7 ppm.