Abstract
A rare case of ternary polymer miscibility has been demonstrated in the mixture (in the glassy amorphous domains) comprising three polymers: polyetherimide (PEI), a new semicrystalline meta-linked poly(etherdiphenyl ether ketone) (PEDEKm), and semicrystalline poly(ether ether ketone) (PEEK). The Tg-compositions relationship for the ternary miscible blend system was treated by extension of the conventional models. The narrow, Tg breadth also suggests that the scale of mixing was fine. The ternary blend exhibit no cloud point transition within the wide temperature range (50-400°C) studied. The interactions between any pairs among the three polymers were estimated using the Flory-Huggins theory. The FT-IR result gave further evidence that no significant specific interactions existed in any of the three binary pairs. The results collectively supported that no significant binary Δχ existed in the ternary polymer blend, which is favorable for leading this rare ternary miscibility.
Original language | English |
---|---|
Pages (from-to) | 1877-1886 |
Number of pages | 10 |
Journal | Macromolecular Chemistry and Physics |
Volume | 201 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2000 Sep 28 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry