| polymer_type |
<app.db.schema.PolymerType object at 0x71ff90704530>
|
| morphology |
<app.db.schema.Morphology object at 0x71ff90704e00>
|
| source |
<app.db.schema.LiteratureSource object at 0x71ff90706ba0>
|
| chemical_loads |
|
| matrix_entries |
(<app.db.schema.MatrixComposition object at 0x71ff90705e20>)
(<app.db.schema.MatrixComposition object at 0x71ff90705a00>)
|
| id |
8 |
| polymer_type_id |
3 |
| size_major_axis_nm |
5000.0 |
| size_minor_axis_nm |
3000.0 |
| morphology_id |
1 |
| crystallinity_pct |
3.0 |
| surface_area_m2_per_g |
5.0 |
| zeta_potential_mv |
-28.0 |
| hydrophobicity_log_d |
3.2 |
| surface_functionalization |
Yellowed, brittle surface from photo-oxidation; signs of mechanical fragmentation. |
| protein_corona_potential |
|
| origin |
Secondary |
| weathering_state |
4 |
| degradability_notes |
PS becomes brittle with UV; fragments into ever-smaller particles. |
| density_g_per_cm3 |
1.05 |
| reference_material_id |
|
| detection_method |
µRaman spectroscopy |
| refractive_index |
1.59 |
| reliability_rating |
reliable |
| detection_method_notes |
PS is readily detected by µRaman and Py-GC/MS even in weathered/degraded states. |
| source_id |
3 |
| notes |
Aged polystyrene fragment from degraded foam packaging or disposable items. |
| created_at |
2026-05-16 05:30:24.903693 |
| updated_at |
2026-05-16 05:30:24.903693 |