Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Fourier Transform Infrared Spectroscopy Of Some Miscible Polybenzimidazole/Polyimide Blends, William Macknight, Gaetano Guerra, Soonja Choe, David J. Williams, F. E. Karasz
Fourier Transform Infrared Spectroscopy Of Some Miscible Polybenzimidazole/Polyimide Blends, William Macknight, Gaetano Guerra, Soonja Choe, David J. Williams, F. E. Karasz
William MacKnight
The IR spectra of representative miscible aromatic polybenzimidazole/aromatic polyimide (PBI/PI) blends have been studied. Composition-dependent frequency shifts of up to 55 cm-1 in the N-H stretching band of PBI and up to 6 cm-1 in the carbonyl stretching bands of Pl were observed. These shifts were removed by thermally induced phase separation. The results suggest that the miscibility of these blends derives from specific intermolecular interactions involving the > NH and carbonyl groups.
Miscible Polybenzimidazole Blends With A Benzophenone-Based Polyimide, William Macknight, Gaetano Guerra, David J. Williams, F. E. Karasz
Miscible Polybenzimidazole Blends With A Benzophenone-Based Polyimide, William Macknight, Gaetano Guerra, David J. Williams, F. E. Karasz
William MacKnight
No abstract provided.