Phase behavior of PCBM blends with different conjugated polymers
Zhao, J; Bertho, S; Vandenbergh, J; Van Assche, G; Manca, J; Vanderzande, D; Yin, X; Shi, J; Cleij, T; Lutsen, L; Van Mele, B
| HERO ID | 1455184 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Phase behavior of PCBM blends with different conjugated polymers |
| Authors | Zhao, J; Bertho, S; Vandenbergh, J; Van Assche, G; Manca, J; Vanderzande, D; Yin, X; Shi, J; Cleij, T; Lutsen, L; Van Mele, B |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 13 |
| Issue | 26 |
| Page Numbers | 12285-12292 |
| Abstract | In this work the phase behavior of [6,6]-phenyl C(61)-butyric acid methyl ester (PCBM) blends with different poly(phenylene vinylene) (PPV) samples is investigated by means of standard and modulated temperature differential scanning calorimetry (DSC and MTDSC) and rapid heat-cool calorimetry (RHC). The PPV conjugated polymers include poly(2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylene vinylene) (MDMO-PPV), High T(g)-PPV which is a copolymer, and poly((2-methoxy-5-phenethoxy)-1,4-phenylene vinylene) (MPE-PPV). Comparisons of these PPV:PCBM blends with regioregular poly(3-hexyl thiophene) (P3HT):PCBM blends are made to see the different component miscibilities among different blends. The occurrence of liquid-liquid phase separation in the molten state of MDMO-PPV:PCBM and High T(g)-PPV:PCBM blends is indicated by the coexistence of double glass transitions for blends with a PCBM weight fraction of around 80 wt%. This is in contrast to the P3HT:PCBM blends where no phase separation is observed. Due to its high cooling rate (about 2000 K min(-1)), RHC proves to be a useful tool to investigate the phase separation in PPV:PCBM blends through the glass transition of these crystallizable blends. P3HT is found to have much higher thermal stability than the PPV samples. |
| Doi | 10.1039/c0cp02814b |
| Pmid | 21633753 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |