Table 1: Characterization of the polymers.

SamplePAE content in copolymer (wt%)a MnPDIb
TheoreticalExperimentala

PAE10055001.58
4-arm PEG-b-PAE61.0942000390102.65

Calculated from the 1H-NMR results.
bPDI is the polydispersity of copolymers by GPC.