HuagongsheHuagongshe Chemistry Print Report · For research reference only
2,3-Dihydroxybutanedioic Acid → Poliglecaprone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2,3-Dihydroxybutanedioic Acid | HCID 875 | — |
| Reactant | 2-ethylhexanoic acid tin(II) salt | HCID 9318 | — |
| Reactant | epsilon-CAPROLACTONE | HCID 10401 | — |
| Reactant | Glycolide | HCID 65432 | — |
| Product | Poliglecaprone | HCID 65431 | — |
Reaction Conditions
| Temperature | 150 °C |
|---|
Reaction Steps
Glycolide (0.08865 moles) was mixed with ε-caprolactone (1.455 moles) and a catalytic amount of stannous octoate (0.3 mmoles) and tartaric acid (0.075 moles). The system was heated at 150° C. and was stirred at this temperature for 6 hours. At the conclusion of the reaction, the unreacted monomer was removed by heating at 120° C. under reduced pressure for 30 minutes. The resulting polymer had a peak melting temperature of 49.1° C. as measured by DSC and an MW of 151,948 as measured by GPC.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06723114B2 |
| Source dataset | uspto-grants-2004_04 |
| ORD ID | ord-2fe7fec93dd74b9b811eacd0adcca33a |
| Source note | uspto-grants-2004_04 |