Synthesis of a new fluoroalkylated diamine, 5-[1 H,1 H-2-bis(trifluoromethyl)- heptafluoropentyl]-1,3-phenylenediamine, and polyimides prepared therefrom
The preparation of a new perfluoroalkylated diamine, 5-[1 H,1 H-2-bis(trifluoromethyl)heptafluoropentyl]-1,3-phenylenediamine, is described. Poly(amic acid)s and polyimides were prepared from this new diamine and polyimides were evaluated as films for electronics applications. The polyimides evaluat...
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Published in | Polymer (Guilford) Vol. 36; no. 3; pp. 651 - 656 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
1995
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | The preparation of a new perfluoroalkylated diamine, 5-[1
H,1
H-2-bis(trifluoromethyl)heptafluoropentyl]-1,3-phenylenediamine, is described. Poly(amic acid)s and polyimides were prepared from this new diamine and polyimides were evaluated as films for electronics applications. The polyimides evaluated were found to yield low dielectric constant and low moisture absorption, but were found to have exceptionally high thermal expansion coefficient. The materials are envisioned to have applications in electronics, where a low and humidity-stable dielectric constant is required. |
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ISSN: | 0032-3861 1873-2291 |
DOI: | 10.1016/0032-3861(95)91576-S |