HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phthalic Anhydride → Pyromellitic dianhydride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Pyromellitic dianhydride | HCID 6966 | — |
Reaction Steps
A polyamic acid of PMDA/ODA in DMF was prepared at 97% stoichiometry and 23.5% solids by weight. The amic acid was end-capped with phthalic anhydride at 0.04% by weight. (need to confirm)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08518525B2 |
| Source dataset | uspto-grants-2013_08 |
| ORD ID | ord-40ed06ed8ffd4c01a2672d41b733963f |
| Source note | uspto-grants-2013_08 |