Table 1. Degree of grafting of Chi-g-bPEIx copolymers as a function of 2 kDa bPEI equiv per D-glucosamine unit added during the synthesis.
| Chi-g-bPEIx copolymer | bPEI equiv of reaction | Degree of grafting (x)a |
| Chi-g-bPEI0.6% | 1.27×10−2 | 0.6±0.1% |
| Chi-g-bPEI2.4% | 6.35×10−2 | 2.4±0.1% |
| Chi-g-bPEI2.7% | 1.27×10−1 | 2.7±0.1% |
| Chi-g-bPEI5.2% | 6.35×10−1 | 5.2±0.3% |
| Chi-g-bPEI7.0% | 2.54×100 | 7.0±0.2% |
| Chi-g-bPEI8.7% | 1.27×101 | 8.7±0.1% |
| Chi-g-bPEI8.8% | 6.35×100 | 8.8±1.3% |
a
“x” is the average percentage of D-glucosamine (GlcN) monomers grafted with branched polyethylenimine (bPEI). Results are expressed as mean ± standard deviation.