Table I.

Characteristics of the PLBMGA and PLHMGA

	Polymer	Feed ratio M/D,Lb	Copolymer Composition (NMR)	Mn (kg/mol)	Mw (kg/mol)
PLBMGA	P1	25/75	21/79	14	22
	P2*	25/75	22/78	16	35
	P3	35/65	30/70	11	16
	P4*	35/65	35/65	21	41
		35/65	32/68	10	16
		35/65	31/69	18	42
	P7	50/50	44/56	10	15
	P8*	50/50	46/54	20	51
PLHMGA	P9	25/75	20/80	11	19
	P10*	25/75	20/80	13	30
	P11	35/65	31/69	8	13
	P12*	35/65	33/67	20	37
		35/65	33/67	10	15
		35/65	30/70	19	40
	P15	50/50	47/53	4	7
	P16*	50/50	46/54	19	45

^aCopolymers used to study the effect of M_n on BSA release

^b M monomer BMMG, D, L = D,L-lactide

^cM/I = 10

*synthesized by using recrystallized monomer