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Miscibility studies in blends of polybenzimidazoles and poly(4‐vinyl pyridine)
Author(s) -
Makhija S.,
Pearce E. M.,
Kwei T. K.,
Liu F.
Publication year - 1990
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760301307
Subject(s) - miscibility , materials science , glass transition , polymer chemistry , polymer , polymer blend , pyridine , hydrogen bond , infrared spectroscopy , phenylene , chemical engineering , copolymer , composite material , organic chemistry , molecule , chemistry , engineering
Poly[2,2'‐(m‐phenylene)‐5,5'‐bibenzimidazole] (PBI) is shown to be miscible with poly(4‐vinyl pyridine) over the entire composition range. Experiments were performed with commercial PBI as well as a lower molecular weight material synthesized by us. Blend miscibility is evidenced by single glass transition temperature intermediate between the pure polymers. Hydrogen bonding between the components was detected by infrared spectroscopy.