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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 379494Generated: October 25, 2026

2,3-Dihydroxybutanedioic Acid → Poliglecaprone

https://huagongshe.com/reaction/379494

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-Dihydroxybutanedioic AcidHCID 875—
Reactant2-ethylhexanoic acid tin(II) saltHCID 9318—
Reactantepsilon-CAPROLACTONEHCID 10401—
ReactantGlycolideHCID 65432—
ProductPoliglecaproneHCID 65431—

Reaction Conditions

Temperature150 °C

Reaction Steps

Glycolide (0.08865 moles) was mixed with ε-caprolactone (1.455 moles) and a catalytic amount of stannous octoate (0.3 moles) 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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06299631B1
Source datasetuspto-grants-2001_10
ORD IDord-b319a34dd22e476b97bb99b4f886e3ff
Source noteuspto-grants-2001_10