Table 2. Tensile Properties of Shape Memory Polymer Foams in Dry and Wet Conditionsa.
| dry |
wet |
|||||
|---|---|---|---|---|---|---|
| sample | elastic modulus (kPa) | ultimate tensile strength (kPa) | maximum elongation (mm/m) | elastic modulus (kPa) | ultimate tensile strength (kPa) | maximum elongation (mm/m) |
| Control | 3216 ± 1669 | 528 ± 230 | 0.17 ± 0.04 | 153 ± 22 | 53 ± 21 | 0.36 ± 0.19 |
| 15% NTA–DEG | 217 ± 86* | 69 ± 26* | 0.39 ± 0.20 | 24 ± 5* | 45 ± 20 | 1.73 ± 0.39 |
| 30% NTA–DEG | 78 ± 33* | 94 ± 7* | 1.39 ± 0.60* | 15 ± 3* | 70 ± 24 | 4.53 ± 1.34* |
n = 3, average ± standard deviation displayed. *p < 0.05 relative to control.