. 2015 Oct 8;10:6395–6410. doi: 10.2147/IJN.S91961

Table 2.

Molecular weight characterization of mPEG-PCL and mPEG-PCL-Phe(Boc) by GPC

Copolymer	MN^a	MW^a	PDI^a	MN^b
mPEG-PCL	6,411	6,868	1.071	3,654
mPEG-PCL-Phe(Boc)	6,712	7,143	1.064	3,826

Notes: Relative molecular weights (MN, MW) and molecular weight distribution (PDI, MW/MN) were determined by a GPC system. The number-average molecular weights (MNs) from the GPC results were derived using a polystyrene calibration curve and were corrected by a factor of 0.57.

Obtained from GPC based on the polystyrene calibration.

Corrected GPC results, MN^a ×0.57.

Abbreviations: mPEG-PCL, monomethoxyl poly (ethylene glycol)-b-poly (ε-caprolactone); mPEG-PCL-Phe(Boc), N-t-butoxycarbonyl-phenylalanine terminated monomethoxyl poly (ethylene glycol)-b-poly (ε-caprolactone); GPC, gel permeation chromatography; MN, number-average molecular weight; MW, weight-average molecular weight; PDI, polydispersity index.