SYNTHESIS OF A NEW FLUOROALKYLATED DIAMINE, 5-[1H,1H-2-BIS(TRIFLUOROMETHYL)HEPTAFLUOROPENTYL]-1,3-PHENYLENEDIAMINE, AND POLYIMIDES PREPARED THEREFROM

被引:38
作者
AUMAN, BC
HIGLEY, DP
SCHERER, KV
MCCORD, EF
SHAW, WH
机构
[1] E. I. du Pont de Nemours, Co. Inc., Experimental Station, Wilmington
关键词
FLUOROALKYLATED DIAMINE; FLUORINATED POLYIMIDES; SYNTHESIS;
D O I
10.1016/0032-3861(95)91576-S
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The preparation of a new perfluoroalkylated diamine, 5-[1H,1H-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.
引用
收藏
页码:651 / 656
页数:6
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