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Molecular composites of polyimide/poly‐n‐vinylpyrrolidone by in‐situ polycondensation
Author(s) -
Wu Meiyan,
Yuan Yumin
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971220159
Subject(s) - polyimide , miscibility , condensation polymer , polymer , materials science , polymer chemistry , in situ , matrix (chemical analysis) , composite material , chemical engineering , chemistry , organic chemistry , layer (electronics) , engineering
The molecular composites of polyimide (PI) with poly‐n‐vinylpyrrolidone (PVP) were successfully synthesized by in‐situ polycondensation of the rigid polymer in the matrix polymer solution. A strong acid‐base interaction between the polyamic acid (the precursor of PI) and the PVP was confirmed experimentally. By this specific interaction the miscibility of PI with PVP was substantially improved. The PI dispersed in the PVP matrix polymer on a molecular level or nearly molecular level.