Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phenol | HCID 996 | — |
| Reactant | Bisphenol A | HCID 6623 | — |
| Reactant | Methylhydroquinone | HCID 7253 | — |
| Reactant | Diphenyl carbonate | HCID 7597 | — |
| Reactant | 4-Methoxyphenol | HCID 9015 | — |
| Product | HCID 131720718 | HCID 131720718 | — |
Reaction Steps
To a 1 L glass reaction vessel, methylhydroquinone (1.089 moles, 135.19 g), bisphenol-A (0.011 moles, 2.51 g) and diphenyl carbonate (1.19 moles, 254.50 g) were added. After heating the system to 180° C., the system underwent a modified series of the 11 segments shown in Table 1, where Segments 7 and 9 were shortened to about 5 minutes and the temperature for Sement 11 was 320° C. After a total of about 3-4 hours, the polymer was stranded to give about 92 g and about 104 g each for two batches. (GC analysis of the 1% BPA distillate: 80% phenol, 13% DPC and 1% MeHQ).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05767225 |
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| Source dataset | uspto-grants-1998_06 |
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| ORD ID | ord-2e701153281f44518f73b0e839bc8271 |
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| Source note | uspto-grants-1998_06 |
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