Table 2. Number of Repeating Units, Arginine Repeating Units (A), Agmatine (Ag) Repeating Units, Molecular Weight, and Polydispersity Index of Each PAA Extrapolated by 1H NMR and SEC Analyses.
samples | no repeating unita | % A repeating unitsa | % Ag repeating unitsa | M̅na | M̅nb | PDb |
---|---|---|---|---|---|---|
PAA[70:30] | 5 | 68 | 32 | 2100 | 1200 | 1.19 |
PAA[50:50] | 5 | 47 | 53 | 2000 | 1300 | 1.16 |
PAA[30:70] | 5 | 26 | 74 | 2000 | 1300 | 1.19 |
Obtained by 1H NMR analysis.
Obtained by SEC analysis from a calibration curve of PEG standards.