Benzoyl Peroxide → L-lactide epsilon-caprolactone

HRID 1438872Notes

Reaction equation

HRID 1438872 reaction equation
[CH3:1][C@@H:2]1[O:9][C:7](=[O:8])[C@H:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C1C=CC=CC=1>[CH3:1][C@@H:2]1[O:9][C:7](=[O:8])[C@H:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1

Participants

5

Reactant 3

HCID 7187Benzoyl PeroxideHCID 10401epsilon-CAPROLACTONEHCID 107983Lactide, L-

Product 1

HCID 131710947L-lactide epsilon-caprolactone

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

110 Grams of a copolymer prepared from 75 parts by weight of L-(-)-lactide and 25 parts by weight of epsilon caprolactone according to the procedure of Example II is blended with 8 grams of dibenzoyl peroxide according to the procedure of Example VIII. The cured copolymer thus obtained is easily molded into colorless, transparent thermosets which are insoluble in benzene. The tensile strength of the cured copolymer is 1560 psi; the total elongation is 450 percent; the initial elastic modulus is 658; and the rebound value (ASTM-D-2632) is 13 percent.

Workup

  1. customThe cured copolymer thus obtained

Sources & evidence

ORD record
ord-24cb6544eaad47c69ccf5679ce53a82f
Source dataset
uspto-grants-1977_11
Patent number
US04057537

Reaction notes

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