epsilon-CAPROLACTONE → Poliglecaprone

HRID 861176Notes

Reaction equation

HRID 861176 reaction equation
[C:1]1(=[O:8])[O:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:9]1[O:16][C:14](=[O:15])[CH2:13][O:12][C:10]1=[O:11]>C(O)(C(F)(F)F)C(F)(F)F>[C:1]1(=[O:8])[O:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:9]1[O:16][C:14](=[O:15])[CH2:13][O:12][C:10]1=[O:11]

Participants

4

Reactant 2

HCID 10401epsilon-CAPROLACTONEHCID 65432Glycolide

Product 1

HCID 65431Poliglecaprone

Reagents, catalysts & solvents 1

HCID 135291,1,1,3,3,3-Hexafluoro-2-propanolSolvent

Procedure

The procedure described in Example 1 is substantially reproduced by reacting 91.3 gm (0.8 mole) of ε-caprolactone with 139.3 gm (1.2 mole) of glycolide. A weight loss of 1.1% is observed upon devolatilization. The I.V. of the copolymer is 1.83 dl/g in HFIP and the mole ratio of PCL/PGA is found to be 38.7/61.3 by NMR.

Sources & evidence

ORD record
ord-14958341db244c20a857265e60f8163f
Source dataset
uspto-grants-1998_02
Patent number
US05713920

Reaction notes

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