Table 1.
Characterization data of oPACEs
| Name a | OEDE/DES/MDEA/PDL (feed molar ratio) | OEDE/DES/MDEA/PDL (molar ratio) b | Mwc | PDIc | Nitrogen content (wt%) |
|---|---|---|---|---|---|
| oPACE1-6 | 10/90/100/11 | 6/94/100/11 | 1777 | 1.20 | 4.3 |
| oPACE1-13 | 20/80/100/11 | 13/87/100/11 | 1827 | 1.21 | 4.2 |
| oPACE1-24 | 30/70/100/11 | 24/76/100/11 | 1874 | 1.21 | 4.0 |
| oPACE1-34 | 40/60/100/11 | 34/66/100/11 | 2169 | 1.28 | 3.8 |
| oPACE1-43 | 50/50/100/11 | 43/57/100/11 | 2064 | 1.26 | 3.7 |
| oPACE5-13 | 20/80/100/11 | 13/87/100/11 | 15963 | 2.13 | 4.0 |
| oPACE5-20 | 30/70/100/11 | 20/80/100/11 | 13175 | 2.04 | 3.8 |
| oPACE5-28 | 40/60/100/11 | 28/72/100/11 | 8767 | 2.00 | 3.6 |
| oPACE9-8 | 10/90/100/11 | 8/92/100/11 | 18533 | 2.6 | 4.1 |
| oPACE9-14 | 20/80/100/11 | 14/86/100/11 | 11187 | 2.09 | 3.9 |
| oPACE9-20 | 30/70/100/11 | 20/80/100/11 | 9162 | 1.91 | 3.7 |
| oPACE9-31 | 40/60/100/11 | 31/69/100/11 | 10092 | 1.99 | 3.3 |
| oPACE9-36 | 50/50/100/11 | 36/64/100/11 | 8126 | 1.89 | 3.2 |
| PACE | 0/100/100/11 | 0/100/100/11 | 9937 | 2.31 | 4.5 |
a
The polymers are named as oPACEn-x, where n indicates OEDE (n) units in the copolymer, and x is the molar percentage of OEDE units vs MDEA units.
b
Measured by 1H NMR spectroscopy.
c
Measured by GPC with narrow polydispersity polystyrene standards.