Table 1 Synthetic conditions and molecular weights of DVA PAs.
Polyamides | Side-chain alkyl carbon number | Side-chain composition (mol %) | Short-chain monomer (mg) | Long-chain monomer (mg) | Yield (%) | Mnb (104 g/mol) | Mwb (104 g/mol) | Mw/Mnb | ||
|---|---|---|---|---|---|---|---|---|---|---|
In feed | Calculateda | |||||||||
P1 | 1 | 100 | 100 | 333 | - | 85.3 | 10.8 | 15.0 | 1.4 | |
P4 | 4 | 100 | 100 | 442 | - | 75.8 | 15.3 | 21.1 | 1.4 | |
P6 | 6 | 100 | 100 | 500 | - | 81.3 | 11.7 | 16.6 | 1.4 | |
P8 | 8 | 100 | 100 | 557 | - | 88.3 | 10.5 | 15.0 | 1.4 | |
P16- | 75/25 | 1,6 | 75/25 | 77/23 | 272 | 125 | 79.9 | 15.9 | 25.0 | 1.6 |
50/50 | 1,6 | 50/50 | 54/46 | 236 | 563 | 43.9 | 6.9 | 8.7 | 1.3 | |
25/75 | 1,6 | 25/75 | 23/77 | 83 | 376 | 88.9 | 6.3 | 7.7 | 1.2 | |
75/25 | 1,8 | 75/25 | 72/28 | 272 | 139 | 81.6 | 9.7 | 13.0 | 1.3 | |
P18- | 50/50 | 1,8 | 50/50 | 73/27 | 166 | 278 | 68.4 | 5.8 | 7.0 | 1.2 |
25/75 | 1,8 | 25/75 | 35/65 | 84 | 418 | 73.8 | 6.7 | 8.4 | 1.3 | |
P46- | 75/25 | 4,6 | 75/25 | 76/24 | 334 | 125 | 81.6 | 14.2 | 19.6 | 1.4 |
50/50 | 4,6 | 50/50 | 50/50 | 222 | 250 | 77.7 | 14.4 | 20.1 | 1.4 | |
25/75 | 4,6 | 25/75 | 23/77 | 112 | 376 | 76.1 | 8.7 | 11.1 | 1.3 | |
PiPr | 3 (branched) | 100 | 100 | 1200 | - | 84.6 | 7.6 | 13.1 | 1.7 | |
PiBu | 4 (branched) | 100 | 100 | 1200 | - | 85.8 | 5.6 | 9.3 | 1.7 | |
