Table 1.
Synthesis and characterization of poly(amido amine)s
| Polymers |
Monomers (equiv)
|
Reaction time (h) |
Ketal (mol %)
|
Mn (GPC) | Mw/Mn | ||||
|---|---|---|---|---|---|---|---|---|---|
| CBA | HMBA | KDA | HDA | In feed | In polymer | ||||
| NonR | 0 | 1 | 0 | 1 | 48 | 0 | 0 | 24900 | 1.36 |
| AcidR | 0 | 0 | 1 | 1 | 96 | 0 | 0 | 16800 | 1.54 |
| RedoxR | 1 | 0 | 0 | 1 | 48 | 0 | 0 | 26800 | 1.50 |
| DualRl | 1 | 0 | 1 | 0 | 96 | 100 | 100 | 19000 | 1.83 |
| DualR2 | 1 | 0 | 0.75 | 0.25 | 96 | 75 | 73 | 21700 | 1.70 |
| DualR3 | 1 | 0 | 0.50 | 0.50 | 96 | 50 | 48 | 23200 | 1.72 |
| DualR4 | 1 | 0 | 0.25 | 0.75 | 96 | 25 | 26 | 25400 | 1.57 |
Abbreviations: CBA, N,N′-cystaminebisacrylamide; HDA, hexamethylene diamine; HMBA, hexmethylenebisacrylamide; KDA, [1,1′-(2,2′-(propane-2,2-diylbis(oxy)) bis(ethane-2,1-diyl))diurea]; GPC, gel permeation chromatography; NonR, non-responsive; AcidR, acid responsive; RedoxR, redox responsive; DualR, dual responsive.