Microstructure and Properties of Fully Aliphatic Polyimide/Mesoporous Silica Hybrid Composites

We report the effect of the amount of the mesoporous material, SBA-15, on the basic traits of fully aliphatic polyimides (API). For this purpose, water soluble, fully aliphatic poly(amic acid) triethyl amine salts ($PAA_{(s)}$) were prepared and mixed with various amounts of SBA-15. Fully aliphatic...

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Bibliographic Details
Published inMacromolecular research Vol. 17; no. 9; pp. 638 - 645
Main Authors Mathewst, Anu Stella, Jung, Yu-In, Lee, Tae-Sung, Park, Sung-Soo, Kim, Il, Ha, Chang-Sik, Selvaraj, M, Han, Mi-Jeong
Format Journal Article
LanguageKorean
Published 2009
Subjects
mesoporous silica
dielectric properties
fully aliphatic polyimides
hybrid composites
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Summary:We report the effect of the amount of the mesoporous material, SBA-15, on the basic traits of fully aliphatic polyimides (API). For this purpose, water soluble, fully aliphatic poly(amic acid) triethyl amine salts ($PAA_{(s)}$) were prepared and mixed with various amounts of SBA-15. Fully aliphatic polyimide hybrid composites containing the SBA 15-type mesoporous silica were synthesized successfully from bicyclo [2.2.2] oct-7-ene-2,3,5,6-tetracarboxylic dianhydride and alicyclic diamine, 4,4'-methylene bis(2-methylcyclohexylamine). The structure of the hybrid composites was confirmed by IR spectroscopic analysis. Scanning electron microscopy revealed the morphology of the compounds. The hybrid composites exhibited good thermal stability, reasonable transparency, and a low dielectric constant.
Bibliography:KISTI1.1003/JNL.JAKO200933063797103
ISSN:1598-5032
2092-7673