Fluorinated polyimide nanocomposites for low K dielectric applications

A novel fluorinated amine compound prepared was characterized by 1 H NMR, 19 F NMR and FTIR. Subsequently, polymerized with pyromellitic dianhydride results in the formation of neat fluorinated polyimide matrix (PI). In addition, three different nanomaterials such as of graphene oxide (GO), Octa (am...

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Bibliographic Details
Published inJournal of polymer research Vol. 26; no. 9; pp. 1 - 15
Main Authors Kurinchyselvan, S., Hariharan, A., Prabunathan, P., Gomathipriya, P., Alagar, M.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.09.2019
Springer Nature B.V
Subjects
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Contact angle
Dianhydrides
Dielectric properties
Fluorination
Graphene
Hydrophobicity
Industrial Chemistry/Chemical Engineering
Insulation
Nanocomposites
Nanomaterials
NMR
Nuclear magnetic resonance
Original Paper
Polarity
Polyimide resins
Polymer Sciences
Hybrid composites
Polyimide
Bisphenol AF
Dielectric constant
Octa(aminophenyl) silsesquioxane (OAPS)
Graphene oxide
Contact angle
Thermal stability
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Summary:A novel fluorinated amine compound prepared was characterized by 1 H NMR, 19 F NMR and FTIR. Subsequently, polymerized with pyromellitic dianhydride results in the formation of neat fluorinated polyimide matrix (PI). In addition, three different nanomaterials such as of graphene oxide (GO), Octa (aminophenyl) silsesquioxane (OAPS) and graphene oxide blended with Octa (aminophenyl) silsesquioxane (GO-OAPS) were reinforced separately with PI in varying weight percentages. The developed composites were studied for their thermal, dielectric and hydrophobic behaviour and compared. Comparatively the 7% OAPS-GO/PI exhibits lower dielectric constant (k = 2.1) than that of neat PI, GO/PI and OAPS/PI composites. The OAPS grafted onto the GO surface contributes for lower polarity due to its porous caged structure and contributes for higher insulation behaviour. Further, the 7% OAPS-GO/PI also exhibits higher contact angle (107°) due to the less polar nature of the composites which in turn contributes to enhanced hydrophobic behaviour. The data obtained from morphological, surface and dielectric studies indicate that the OAPS-GO/PI composites exhibited substantially improved hydrophobic and dielectric properties than that of GO/PI and OAPS/PI.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-019-1852-z