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Low dielectric constant polyimide nanomats by electrospinning

Title data

Chen, Fei ; Bera, Debaditya ; Banerjee, Susanta ; Agarwal, Seema:
Low dielectric constant polyimide nanomats by electrospinning.
In: Polymers for Advanced Technologies. Vol. 23 (June 2012) Issue 6 . - pp. 951-957.
ISSN 1099-1581
DOI: https://doi.org/10.1002/pat.1997

Official URL: Volltext

Project information

Project financing: Alexander von Humboldt-Stiftung

Abstract in another language

The proper combination of material (i.e. fluorinated polyimides) and processing technique (electrospinning) could lead to the formation of polyimides with low dielectric constant, high thermo-oxidative stability and glass transition temperature, and high hydrophobicity. The polyimides in this work were based on 4, 4-bis 3′-trifluoromethyl-4′ (4′-amino benzoxy) benzyl biphenyl (Q) and various fluorinated and non-fluorinated dianhydrides namely benzene-1,2,4,5-tetracarboxylic dianhydride, 3,3′,4,4′-biphenyltetracarboxylic dianhydride, benzophenone-3,3′,4,4′-tetracarboxylic dianhydride, and 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA). Processing of the polyimides was carried out in poly(amic acid) stage by two different methods—electrospinning and solution casting for comparison purposes. The processing of polyimides by electrospinning led to enhancement in mechanical properties (dianhydride-structure dependent) and hydrophobicity without sacrificing thermo-oxidative stability and glass transition temperatures significantly. Also, low dielectric constants (as low as 1.43) could be attained by suitable combination of dianhydride (6FDA) with 4, 4-bis 3′-trifluoromethyl-4′ (4′-amino benzoxy) benzyl biphenyl diamine. Copyright © 2011 John Wiley & Sons, Ltd.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: fluorinated polyimide; electrospinning; nanomats
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 02 Apr 2015 14:11
Last Modified: 02 Apr 2015 14:11
URI: https://eref.uni-bayreuth.de/id/eprint/9790