Table 1.
Characteristics of the polymers a.
| Polymer | 5:7 b | Yield c (%) | Mn d (×104) | Mw/Mnd | Tge (°C) | Tdf (°C) | θwater g (°) | θBioctyl g (°) | 5:7 h (%) | F i (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 0 | 79 | – | – | 59.47 | 248.27 | 113.84 | 65.55 | – | 58.07 |
| Poly(5-co-BMA) | 1:1 | 59 | 1.07 | 1.22 | 52.76 | 238.97 | 102.37 | 46.23 | 80.4 | 42.92 |
| 1:2 | 63 | 1.41 | 1.43 | 51.27 | 236.73 | 100.03 | 44.52 | 27.6 | 27.73 | |
| 1:6 | 87 | 2.85 | 5.81 | 46.21 | 245.21 | 99.74 | 43.27 | 22.0 | 22.96 | |
| 1:8 | 76 | 2.16 | 1.83 | 42.82 | 243.73 | 97.41 | 42.68 | 14.4 | 17.40 | |
| 1:15 | 71 | 4.50 | 4.12 | 41.64 | 234.02 | 95.32 | 40.47 | 6.8 | 9.41 | |
| Poly(5-co-MMA) | 1:1 | 66 | 1.02 | 1.55 | 49.40 | 232.34 | 85.06 | 52.70 | 87.8 | – |
| 1:2 | 74 | 1.02 | 1.31 | 56.02 | 253.24 | 60.74 | 48.62 | 60.8 | – | |
| 1:6 | 81 | 1.56 | 1.43 | 68.65 | 249.97 | 32.49 | 45.37 | 36.2 | – | |
| 1:8 | 81 | 1.87 | 1.60 | 84.80 | 244.18 | 30.57 | 42.35 | 29.6 | – | |
| 1:15 | 68 | 1.67 | 1.62 | 103.80 | 241.27 | 18.58 | 36.53 | 15.2 | – | |
| Poly(5-co-EMA) | 1:1 | 59 | 1.36 | 1.25 | 58.13 | 240.72 | 106.83 | 54.90 | 83.6 | – |
| 1:2 | 77 | 1.45 | 1.74 | 53.71 | 241.09 | 101.64 | 50.53 | 30.8 | – | |
| 1:6 | 67 | 2.14 | 1.69 | 53.34 | 236.24 | 99.93 | 45.03 | 22.0 | – | |
| 1:8 | 59 | 3.13 | 1.91 | 52.15 | 241.08 | 95.64 | 42.10 | 10.4 | – | |
| 1:15 | 57.9 | 3.70 | 1.951 | 53.10 | 249.92 | 97.86 | 39.64 | 8.2 | – | |
| Poly(5-co-HMA) | 1:1 | 68 | 1.90 | 1.66 | 11.28 | 229.64 | 103.37 | 51.78 | 74.8 | – |
| 1:2 | 69 | 1.27 | 1.74 | 12.12 | 231.20 | 96.46 | 49.13 | 27.6 | – | |
| 1:6 | 79 | 2.72 | 8.83 | 1.76 | 239.61 | 97.39 | 36.96 | 13.6 | – | |
| 1:8 | 78 | 2.71 | 5.11 | −0.61 | 242.75 | 95.87 | 35.05 | 8.8 | – | |
| 1:15 | 88 | 2.05 | 3.13 | −5.06 | 246.26 | 98.12 | 34.75 | 4.0 | – | |
| Poly(5-co-OMA) | 1:1 | 58 | 1.04 | 1.44 | 3.43 | 234.90 | 97.20 | 41.81 | 74.8 | – |
| 1:2 | 64 | 1.37 | 2.07 | 5.12 | 217.04 | 103.28 | 30.31 | 21.1 | – | |
| 1:6 | 67 | 2.49 | 4.13 | 6.94 | 242.10 | 109.28 | 27.04 | 12.8 | – | |
| 1:8 | 61 | 1.94 | 2.92 | 6.89 | 240.13 | 109.47 | 22.20 | 8.0 | – | |
| 1:15 | 94 | 1.81 | 2.12 | 9.58 | 248.13 | 109.20 | 18.26 | 3.2 | – | |
| Poly(5-co-LMA) | 1:1 | 59 | 1.10 | 1.53 | −1.60 | 220.47 | 102.59 | 37.66 | 49.6 | – |
| 1:2 | 65 | 1.57 | 1.70 | −25.08 | 234.45 | 99.10 | 33.51 | 20.8 | – | |
| 1:6 | 67 | 2.24 | 2.20 | −48.8 | 234.39 | 95.09 | 26.48 | 14.8 | – | |
| 1:8 | 67 | 2.26 | 2.15 | −51.17 | 234.12 | 92.02 | 26.04 | 9.6 | – | |
| 1:15 | 88 | 2.31 | 2.24 | −44.76 | 248.65 | 113.23 | 19.51 | 2.4 | – | |
| Poly(5-co-SMA) | 1:1 | 67 | 1.63 | 1.81 | 14.36 | 283.71 | 107.18 | 37.06 | 34.4 | – |
| 1:2 | 74 | 2.23 | 2.37 | 25.61 | 283.35 | 106.99 | 36.39 | 19.6 | – | |
| 1:6 | 91 | 5.13 | 5.51 | 29.76 | 344.39 | 104.42 | 30.64 | 10.0 | – | |
| 1:8 | 97 | 4.13 | 3.78 | 30.69 | 349.30 | 99.68 | 19.34 | 5.2 | – | |
| 1:15 | 80 | 2.45 | 2.41 | 33.48 | 354.89 | 95.98 | 5.26 | 0.8 | – |
a: Reaction conditions: 20% solution in toluene, 0.03 equiv. of AIBN, 80 °C in Ar; b: Feed molar ratio of 5 to 7; c: Isolated yield; d: The number-average molecular weight (Mn) and the polydispersity (Mw/Mn) were determined by GPC; e: Tg As determined by DSC; f: Td As determined by TGA; g: Contact angles of water and n-hexadecane on polymer film (θwater and θBioctyl); h: Molar ratios of 5 and 7 in the copolymer was determined by 1H NMR spectroscopy; i: As determined by elemental analysis.