HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → p-Acetyloxystyrene p-tert-butoxystyrene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | 4-Ethenylphenyl acetate | HCID 75821 | — |
| Reactant | 2,2'-Azobis(2,4-dimethylvaleronitrile) | HCID 91537 | — |
| Reactant | 1-(Tert-butoxy)-4-ethenylbenzene | HCID 577531 | — |
| Solvent | Acetone | HCID 180 | — |
| Product | p-Acetyloxystyrene p-tert-butoxystyrene | HCID 86754729 | — |
Reaction Steps
With the use of 48.6 g (0.30 mole) of p-acetyloxystyrene, 17.6 g (0.10 mole) of p-tert-butoxystyrene and a catalytic amount of 2,2′-azobis(2,4-dimethylvaleronitrile), the same reaction and after-treatment as described in Production Example 2-(1) were conducted, and the resulting viscous resinous material was dissolved in 200 ml of acetone and poured into 1000 ml of 50% aqueous methanol solution. The precipitated resin was recovered by decantation and dried under reduced pressure to give 59.7 g of poly(p-acetyloxystyrene/p-tert-butoxystyrene) as white powders. A ratio of p-acetyloxystyrene unit and p-tert-butoxystyrene unit was about 3:1 by 1HNMR. Mw: about 10500, Mw/Mn: 1.32 (GPC method: polystyrene as standard).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06656660B1 |
| Source dataset | uspto-grants-2003_12 |
| ORD ID | ord-5759a8a0b1d3406aa646b6aad2797311 |
| Source note | uspto-grants-2003_12 |