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Miscibiuty in Blends of Polybenzimidazole and Fluorine Containing Polyimides

Published online by Cambridge University Press:  21 February 2011

Hiroaki Yamaoka ,
Norman E. Aubrey ,
William J. MAcknight  and
Frank E. Karasz
Hiroaki Yamaoka
Affiliation:
Mitsubishi Monsanto Chemical Company, Yokkaichi Research & Development Dept. 1 Toho-Cho Yokkaichi-City, Mie, JAPAN
William J. MAcknight
Affiliation:
Polymer Science & Engineering Dept., University of Massachusetts, Amherst, MA 01003
Frank E. Karasz
Affiliation:
Polymer Science & Engineering Dept., University of Massachusetts, Amherst, MA 01003
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Abstract

Blends of polybenzimidazole (PBI) with either of two fluorine-containing polyimides were prepared by casting from solution and by precipitation. Dynamic mechanical thermal analysis (DMTA) and differential scanning calorimetry (DSC) were used to study miscibility in the two blend systems.

The blends of PBI with the first polyimide, the polysulfonimide Pl-1, consisted of a single phase when the blends contained less than 30 wt% Pl-1; above 50 wt% Pl-1, phase separation occurred even at room temperature. The PBI blends containing the second polyimide, Pl-2, were immiscible.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 171: Symposium O – Polymer Based Molecular Composites , 1989 , 197
Copyright
Copyright © Materials Research Society 1990

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References

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