Composition, molecular weights and molecular weight distribution of PUs.
| Material | Type | Structural composition | M n (kg mol−1) | PDI | Source | |
|---|---|---|---|---|---|---|
| Soft segment | Hard segment | |||||
| PU-1 | Siloxane polycarbonate polyurethane | PCDL/PDMS | MDI/BDO | 84 | 1.8 | BITa |
| PU-2 | Siloxane polyether polyurethane | PHMO/PDMS | MDI/BDO | 51 | 1.5 | HBUb |
| PU-3 | Siloxane polyether polyurethane | PHMO/PDMS | MDI/BHTD/BDO | 92 | 2.1 | BITa |
| PU-4 | Siloxane polyether polyurethane | PTMG/PDMS | MDI/EDA/BDO | 103 | 2 | BITa |
| 80 A | Polyether polyurethane | PTMG | MDI/BDO | 98 | 1.7 | Lubrizo |
a
BIT: School of Materials Science and Engineering, Beijing Institute of Technology.
b
HBU: Hubei University.