PBI-poly 4-vinyl pyridine PVPy and other blends

11 PBI-poly(4-vinyl pyridine) (PVPy) and other blends 

The good miscibility of PBI-PVPy blends can be useful for property modifications in the plastics industry, particularly in the areas of processability, where intermediate Tg values are sufficient and economical, and with retention of good mechanical properties at elevated temperatures. Blending can be achieved by solution mixing, and hydrogen bonding promotes compatibility. 

Calundann and others reported on novel miscible blends comprising from about 5 to 95 wt% of PBI and 95 to 5 wt% of an aromatic polyamide, 

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