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New polyimides using hydrazine as the diamine
Author(s) -
Ghassemi Hossein,
Hay Allan S.
Publication year - 1995
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.19950980122
Subject(s) - hydrazine (antidepressant) , diamine , moiety , polymer chemistry , yield (engineering) , glass transition , materials science , fluorescence , polyimide , perylene , chemistry , organic chemistry , polymer , molecule , physics , chromatography , quantum mechanics , layer (electronics) , metallurgy
Hydrazine reacts with 1, 8‐naphthalic anhydride to give, exclusively, the N‐aminoimide which reacts further with cyclic anhydrides to yield stable bisimides containing an N‐N linkage. Various bisanhydrides which contain the naphthalic anhydride moiety have been converted to the corresponding bis‐N‐aminoimides from which high molecular weight polyimides have been synthesized. The polyimides have very high glass transition temperatures but remain soluble. Polyimides derived from 3, 4, 9, 10‐perylene tetracarboxylic dianhydride are intensely red in color and are fluorescent.