Abstract
Poly(ethylene oxide)/poly(ε-caprolactone) (PEO/PCL) blends can be widely used in lithium rechargeable battery area or as medical materials, while the miscibility and phase diagram of the blends are still unclear. The present work attempted to establish the blends' phase diagram using rheometry and investigated the miscibility. The results showed that a miscibility window of upper critical solution temperature character of the blends is revealed. Meanwhile, the abnormal rheological behavior of PEO at temperatures higher than 130 °C has little influence on the phase diagram determination. Different rheological properties of PEO/PCL blends from those of PEO revealed the existence of interactions between PEO and PCL molecular chains. Whereas shear-induced mixing or shear-induced phase separation might occur in phase diagram determination of PEO/PCL blends using rheometry.
| Original language | English |
|---|---|
| Pages (from-to) | 1405-1423 |
| Number of pages | 19 |
| Journal | Polymer Bulletin |
| Volume | 68 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 2012 |
| Externally published | Yes |
Funding
The authors gratefully acknowledge the support of National Natural Science Foundation of China Programs (50903061, 50773082, 20974077, and 20804005).
| Funders | Funder number |
|---|---|
| National Natural Science Foundation of China | 50773082, 20974077, 50903061, 20804005 |
Keywords
- Phase diagram
- Poly(ethylene oxide)
- Poly(ε-caprolactone)
- Polymer blends
- Rheology