Table 2.
Polymer | Yield a (%) |
Mn,theo
b (g/mol) |
c (g/mol) |
d (g/mol) |
PDI e |
---|---|---|---|---|---|
N3-PCL20-C≡CH | 96.8 | 2530 | 2770 | 2700 | 1.10 |
c-PCL20 | 37.7 | 2540 | 2790 | 2300 | 1.07 |
N3-PCL30-C≡CH | 97.7 | 3690 | 4000 | 5000 | 1.09 |
c-PCL30 | 38.1 | 3700 | 4100 | 3700 | 1.09 |
N3-PCL50-C≡CH | 97.2 | 5990 | 6340 | 7700 | 1.06 |
c-PCL50 | 37.9 | 6000 | 6350 | 5200 | 1.07 |
N3-PCL70-C≡CH | 97.5 | 8300 | 7950 | 11,100 | 1.08 |
c-PCL70 | 39.5 | 8300 | 8000 | 7900 | 1.10 |
N3-PCL90-C≡CH | 98.1 | 10,600 | 10,200 | 13,000 | 1.10 |
c-PCL90 | 38.9 | 10,700 | 10,200 | 9500 | 1.08 |
N3-PCL100-C≡CH | 96.8 | 11,700 | 11,900 | 16,400 | 1.10 |
c-PCL100 | 40.2 | 11,800 | 12,000 | 12,100 | 1.06 |
N3-PCL150-C≡CH | 97.5 | 17,500 | 17,200 | 20,800 | 1.11 |
c-PCL150 | 40.5 | 17,500 | 17,300 | 15,300 | 1.13 |
N3-PCL200-C≡CH | 97.6 | 23,200 | 23,200 | 26,800 | 1.13 |
c-PCL200 | 41.1 | 23,300 | 23,200 | 21,500 | 1.11 |
a Reaction yield. b Molecular weight estimated from the theoretical molecular weights of N3-PCLn-OH precursors in Table 1. c Number-average molecular weight determined by 1H NMR spectroscopy analysis. d Number-average molecular weight determined THF by using GPC analysis calibrated with polystyrene (PS) standards. e Polydispersity index determined by using GPC analysis calibrated with PS standards.