HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phthalic Anhydride → 5,5'-Carbonyldi(2-benzofuran-1,3-dione)--1-(4-aminophenyl)-1,3,3-trimethyl-2,3-dihydro-1H-inden-5-amine (1/1)
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | 3,3'-(1,1,3,3-Tetramethyldisiloxane-1,3-diyl)bispropylamine | HCID 17181 | — |
| Reactant | 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone | HCID 75494 | — |
| Reactant | 4,4'-(Isopropylidenebis(4,1-phenyleneoxy))dianiline | HCID 83119 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 5,5'-Carbonyldi(2-benzofuran-1,3-dione)--1-(4-aminophenyl)-1,3,3-trimethyl-2,3-dihydro-1H-inden-5-amine (1/1) | HCID 6454485 | — |
Reaction Steps
In accordance with the procedure of Preparation Example 1, a polyimide resin solution was obtained using 288 grams (0.98 mol) of 3,3,4,4-biphenyltetracarboxylic dianhydride as a tetracarboxylic dianhydride component, 74.6 grams (0.3 mol) of 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane and 287.4 grams (0.7 mol) of 2,2-bis[4-(4-aminophenoxy)-phenyl]propane as diamine components, 6 grams (0.04 mol) of phthalic anhydride as a molecular weight modifier, and 2,600 grams of NMP as a solvent. The solution was poured into 5 liters of methanol whereupon a precipitate settled out. Vacuum drying yielded 615 grams of the end polyimide resin.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06143423 |
| Source dataset | uspto-grants-2000_11 |
| ORD ID | ord-d28647d92e264042ac079271c44dc419 |
| Source note | uspto-grants-2000_11 |