Miscibility of Nitrated Poly(2,6 dimethyl-1,4 phenylene oxide)/Poly(strene-co-acrylonitrile) Blends

다국어 초록 (Multilingual Abstract)

The work mainly studies the miscibility of nitrated poly(2,6-dimethyl-1,4-phenylene oxide) and poly(styrene-co-acrylonitrile). The poly(2,6-dimethyl-1,4-phenylene oxide) was reported to be immiscible with poly(styrene-co-acrylonitrile), indicating that the poly(2,6-dimethyl-1,4-phenylene oxide) may be too “non-polar” to be miscible with poly(styrene-co-acrylonitrile). Accordingly, in order to determine feasibility of improving miscibility of the poly(2,6-dimethyl-1,4-phenylene oxide) with poly(styrene-co-acrylonitrile) by chemically modified poly(2,6-dimethyl-1,4- phenylene oxide) containing “polar” monomers, we have prepared partially nitrated poly(2,6-dimethyl-1,4-phenylene oxide), where phenyl groups of the poly(2,6-dimethyl- ,4-phenylene oxide) are nitrated. DSC and DMA analyses showed that the binary blends have only a single Tg, indicating that the nitrated poly(2,6-dimethyl-1,4-phenylene oxide) and poly(styrene-co-acrylonitrile) are miscible.