epsilon-CAPROLACTONE → L-lactide epsilon-caprolactone

Participants

Reaction Steps

The procedure of Example II is repeated except that 75 grams of L-(-)-lactide, 25 grams of epsilon caprolactone and 0.2 gram of stannous acetate are heated in a vacuum-sealed ampoule for 3 days at 136° to 138° C. Conversion to the copolymer is 93 percent. The copolymer has GPC molecular weights of Mw = 90,500 and Mn = 29,100.

Provenance & Evidence