Table 6. Linear Poly(tetramethylene ether) Glycol Adipates, HOCO–C4H8–CO–O–(C4H8O)yH.
| RT (Minute) | Measured Mass (M+H)+/(M+Na)+ | Measured Mass (M-H)− | Repeating Unit (y) | Molecular Formula |
|---|---|---|---|---|
| 8.93 | 363.2383/385.2202 | 361.2231 | 3 | C18H34O7 |
| 9.79 | 435.2956/457.2776 | 433.2804 | 4 | C22H42O8 |
| 10.46 | 507.3533/529.3353 | 505.3380 | 5 | C26H50O9 |
| 11.00 | 579.4108/601.3928 | 577.3953 | 6 | C30H58O10 |
| 11.45 | 651.4681/673.4499 | 649.4525 | 7 | C34H66O11 |
| 11.84 | 723.5256/745.5076 | 721.5107 | 8 | C38H74O12 |
| 12.20 | 795.5820/817.5646 | 793.5678 | 9 | C42H82O13 |
| 12.48 | 867.6395/889.6219 | 865.6249 | 10 | C46H90O14 |
| 12.74 | 939.6998/961.6796 | 937.6829 | 11 | C50H98O15 |
| 12.95 | 1011.7563/1033.7375 | 1009.7398 | 12 | C54H106O16 |
| 13.17 | 1083.8239/1105.7957 | 1081.7977 | 13 | C58H114O17 |
| 13.40 | 1155.8739/1177.8518 | 1153.8551 | 14 | C62H122O18 |
| 13.62 | 1227.9263/1249.9116 | 1225.9130 | 15 | C66H130O19 |
| 13.89 | 1299.9838/1321.9686 | 1297.9690 | 16 | C70H138O20 |