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. 2022 Aug 9;13:4661. doi: 10.1038/s41467-022-32346-5

Table 2.

Characterization of PAS copolymers using GPC, NMR, and Optical Rotation

Entry Gen-lactam feed ratio Mn(GPC)a Đ b [α]25D c FB d Yield e
P5' 0 37,200 1.05 +82.5 N.D. 88
P6' 10 41,400 1.05 +78.6 N.D. 91
P7' 30 38,600 1.06 +72.8 N.D. 90
P8' 50 35,800 1.08 +64.1 N.D. 87
P9' 70 34,600 1.04 +58.1 N.D. 84
P5 0 17,500 1.34 +152.0 0 80
P6 10 21,100 1.37 +137.6 10.3 89
P7 30 18,600 1.36 +114.7 31.2 86
P8 50 17,700 1.47 +87.9 49.5 92
P9 70 17,400 1.30 +78.3 71.8 85

aDetermined by THF GPC against polystyrene standards for P5'-P9', or aqueous GPC against dextran standards for P5-P9, g/mol.

bMw/Mn.

cMeasured by polarimeter in chloroform for P5'-P9' or water for P5-P9, °.

dDetermined from 1H NMR spectra; N.D., not determined.

eIsolated yield, %.