Table 3. Properties of P(BA or OA-AN) Copolymers.
| monomer
ratio BA or OA–AN |
|||||
|---|---|---|---|---|---|
| sample | in feed | in polymer | Tg (°C) | peak frequency of C–N stretching vibration (cm–1) | relative dielectric constant at 100 Hz |
| P(BA62-AN38) bulk | 70:30 | 62:38 | –29.7 | 2239.9 | 7.50 |
| P(BA45-AN55) bulk | 60:40 | 45:55 | –3.3 | 2239.9 | 7.90 |
| P(BA39-AN61) bulk | 50:50 | 39:61 | 5.4 | 2240.9 | 7.35 |
| P(BA84-AN16) solution | 73:27 | 84:16 | –20.7 | 2239.9 | 7.80 |
| P(BA94-AN6) solution | 85:15 | 94:6 | –35.5 | 2239.9 | 6.50 |
| P(BA98-AN2) solution | 95:5 | 98:2 | –47.3 | 2239.0 | 5.20 |
| P(OA55-AN45) bulk | 60:40 | 55:45 | –31.2 | 2239.9 | 6.70 |
| P(OA47-AN53) bulk | 50:50 | 47:53 | –13.8 | 2240.9 | 5.97 |
| P(OA99-AN1) solution | 95:5 | 99:1 | –57.7 | 2239.0 | 4.30 |