Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetone | HCID 180 | — |
| Reactant | P-Cresol | HCID 2879 | — |
| Reactant | 1,2-Benzenedimethanol | HCID 69153 | — |
| Catalyst | Methanesulfonic Acid | HCID 6395 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 67686069 | HCID 67686069 | — |
Reaction Steps
38.4 g (0.36 mol) of p-cresol and 35.0 g (0.25 mol) of xylene-α,α'-diol were dissolved under heating, then 0.15 g of methanesulfonic acid was added thereto at 90-100° C. and the mixture was stirred and reacted at the same temperature for 2 hours. After cooling, 100 ml of acetone was poured into and dissolved in the reaction solution and then the solution was poured into 2,000 ml of water, stirred and then allowed to stand, after which the supernatant was decanted and the residue was dissolved in 100 ml of acetone, poured into 2,000 ml of water and stirred. The solution was allowed to stand, the supernatant was decanted and the residue was evaporated to dryness under reduced pressure to give 65.0 g of p-cresol/1,4-dihydroxymethylbenzene polycondensate as faintly yellow-tinted powdery crystals. Mw≈6,700; Mw/Mn=3.50 (GPC with polystyrene calibration).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05976759 |
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| Source dataset | uspto-grants-1999_11 |
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| ORD ID | ord-23ef266077a64b2b850810f79d67f88e |
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| Source note | uspto-grants-1999_11 |
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