Table 2: Copolymer yields and molecular weight comparisons between NMR and GPC.

CopolymerYield (%)NMRGPC

mPEG2000-CL99.5110160
mPEG2000-PCL30096.9300310
mPEG2000-PCL55095.6500540
mPEG2000-PCL90095.41200900
mPEG2000-PCL130098.017001300
mPEG2000-PCL510072.857005100
mPEG2000-PCL950071.9107009530
mPEG2000-PCL1300079.41210012930