Polymer
RadonPy PI986, polyimide amorphous MD model
Open RadonPy computational screening card for a polyimide repeat unit with available amorphous-state physical, thermal, mechanical, dielectric, and optical predictions.
Properties
Physical
| Property | Value | Unit |
|---|---|---|
| Density | 1139.268236 | kg/m^3 |
Thermal
| Property | Value | Unit |
|---|---|---|
| Specific heat capacity, cp | 2841.411572 | J/kg/K |
| Specific heat capacity, cv | 2756.310485 | J/kg/K |
| Volumetric thermal expansion coefficient | 0.000394006 | 1/K |
| Linear thermal expansion coefficient | 0.000131335 | 1/K |
| Thermal conductivity | 0.195425517 | W/m/K |
| Thermal diffusivity | 6.04e-08 | m^2/s |
Mechanical
| Property | Value | Unit |
|---|---|---|
| Bulk modulus | 2.620147067 | GPa |
| Isentropic bulk modulus | 2.668341004 | GPa |
Electrical
| Property | Value | Unit |
|---|---|---|
| Static dielectric constant, dipole-fluctuation term | 1.18245723 | - |
| Static dielectric constant, electronic-corrected | 2.671675231 | - |
Identity
| Property | Value | Unit |
|---|---|---|
| Repeat-unit SMILES | *c1cccc(N2C(=O)c3ccc(Oc4ccc5c(c4)C4(CC(C)(C)c6ccc(Oc7ccc8c(c7)C(=O)N(*)C8=O)cc64)CC5(C)C)cc3C2=O)c1 | - |
| RadonPy polymer class | 13: polyimide | - |
Model
| Property | Value | Unit |
|---|---|---|
| Number-average molecular mass | 8102.914 | g/mol |
| Degree of polymerization | 12 | - |
Optical
| Property | Value | Unit |
|---|---|---|
| Refractive index | 1.577714272 | - |
Units
Condition
- Condition
- amorphous homopolymer computational model
- Product form
- periodic molecular-dynamics cell
- Thickness / diameter range
- Not applicable to the computational cell.
- Test direction
- Bulk isotropic modeled response.
- Processing route
- RadonPy automated all-atom classical molecular-dynamics workflow.
- Temperature range
- 300 ... 300 K
- Notes
- Classical MD screening result, not a measured grade datasheet. The method paper reports property-dependent bias/correlation limitations; additives, crystallinity, cure, aging, processing, and commercial-grade variation are not represented.
Standards
No material standards linked.
Record status
- Category
- Polymer
- Unit system
- Common SI