Table S1.

Molecular weight of monomers for PLGA and Pluronic^®

Polymer	Monomer molecular weight (Mo)
PLA	72
PLGA 85:15 (Y)	69.9
PGA	58
PEO	44
PPO	58
Pluronic®-F127 (%EO 75.51 + % PO 24.49) (X1)	47.42
Pluronic®-P123 (%EO 36.23 + % PO 63.77) (X2)	52.93
Pluronic®-L121 (%EO 12.82 + % PO 87.18) (X3)	56.20

Notes: Y, X1, X2, and X3 were as used in Equations S1 and S2.

Abbreviations: Mo, molecular weight; PEO, poly(ethylene oxide); PGA, polyglycolic acid; PLA, polylactic acid; PLGA, poly(lactide-co-glycolide); PPO, poly(propylene oxide).