Table 1. Homopolymerization of l-LA ^a .

En	Initiator	[I]/[BnOH]/[LA]	Time b	Conv. c	M n d	PDI
1	Lig3Mg–Cl	1/1/300	5	0.98	33 900	1.04
2	Lig4Mg–Cl	1/1/300	2	0.98	46 500	1.08
3	Lig4Mg–Cl	1/4/600	3	0.98	20 200	1.04
4	Lig4Mg–Cl	1/1/2000	5	0.96	271 500	1.06
5	Lig5Mg–Cl	1/1/300	5	0.95	35 900	1.08
6	[MgCl(μ-Lig1)]2	1/1/300	15	0.90	30 400	1.08
7	[MgCl(μ-Lig2)]2	1/1/300	15	0.88	39 200	1.07

^aPolymerizations performed in CH₂Cl₂ (5 mL) at RT employing 5 μmol of catalyst.

^bPolymerization time given in minutes.

^cDetermined by ¹H NMR spectroscopy (500 MHz).

^dDetermined by GPC analysis calibrated with polystyrene standards and multiplied by a correction factor of 0.58. Values are given in g mol^–1.