Abstract
The phase behavior of blends of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) with random copolymers of styrene and 2-vinyl pyridine, Poly(S-co-2VP), as well as with random copolymers of styrene and 4-vinyl pyridine, Poly(S-co-4VP), has been investigated in order to estimate the values of the Flory-Huggins parameters chi(PPO),(2vp) and chi(PPO,4VP) between PPO and 2-vinyl pyridine, resp. 4-vinyl pyridine. Using previously estimated values for the Flory-Huggins parameters 0.09 <chi(S,2VP) <0.11 and 0.30 <chi(S,4VP) <0.35, together with the literature value of chi(S,PPO) = -0.043, the phase behavior observed as a function of the copolymer composition results in 0.11
Original language | English |
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Pages (from-to) | 1606-1611 |
Number of pages | 6 |
Journal | Polymer |
Volume | 48 |
Issue number | 6 |
DOIs | |
Publication status | Published - 8-Mar-2007 |
Keywords
- random copolymer blend
- interaction
- phase behavior
- SUPRAMOLECULAR POLYMERIC MATERIALS
- BLOCK-COPOLYMER
- PHASE-BEHAVIOR
- DIBLOCK COPOLYMERS
- MOLECULAR-WEIGHT
- THIN-FILMS
- FUNCTIONAL MATERIALS
- ORDERED STRUCTURE
- SOFT MATERIALS
- POLYSTYRENE