Table 3.

Alcoholysis of polylactides under solvent‐free conditions.^[a]

Run	Sample	ROH	M n [b] [kDa]	t [h]	X Int [c] [%]	S Me‐La [c] [%]	Y Me‐La [c] [%]
1	P(rac‐LA)	MeOH	38	1	100	100	100
2	PlLA	MeOH	30	3 8	51 100	100 100	51 100
3	PlLA	MeOH	48	3 8	36 75	100 100	36 75
4	PlLA	MeOH	92	3 8	25 79	100 100	25 79
5	PlLA	MeOH	160	24	100	100	100
6	PlLA	EtOH	92	24	100	80	80
7 d	PlLA	EtOH	92	13	100	100	100

[a] All reactions were carried out by using 5 μmol of Zn catalyst (0.6 mol % relative to ester linkages) in 1.8 mL of THF, with 0.2 mL of MeOH (6 times relative to ester linkages) [b] M _n=experimental molecular weight (GPC). [c] Determinated by ¹H NMR spectroscopy. [d] Reaction performed at reflux temperature.