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Synthesis and Structure-Property Relationships of Fluorinated Poly(ether imide)s as Electret Materials

Title data

Erhard, Dominik P. ; Giesa, Reiner ; Altstädt, Volker ; Schmidt, Hans-Werner:
Synthesis and Structure-Property Relationships of Fluorinated Poly(ether imide)s as Electret Materials.
In: Macromolecular Chemistry and Physics. Vol. 208 (July 2007) Issue 14 . - pp. 1522-1529.
ISSN 1521-3935
DOI: https://doi.org/10.1002/macp.200700111

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The aim of this work was to establish and better understand the structure-property relationship of fluorinated aromatic poly(ether imide)s (PEI) with respect to their electret performance. Therefore two series of PEIs with increasing fluorine content were synthesized. All PEIs are amorphous materials with glass transition temperatures above 220 °C. Thin films with thicknesses around 100 µm were compression molded and corona charged, and isothermal surface potential decay was investigated at 90 °C as an accelerated test for the electret performance. In comparison to the corresponding non-fluorinated PEI, an improvement of up to thirty-fold was achieved by the incorporation of trifluoromethyl moieties. Out of the investigated fluorinated PEIs, the polymer with the best charge storage performance maintained 87% of the initial surface potential charge after annealing at 90 °C for 24 h. It was also found that, within the investigated series, the highest fluorine content does not necessarily result in the best charge-storage properties.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I > Chair Macromolecular Chemistry I - Univ.-Prof. Dr. Hans-Werner Schmidt
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Polymer Engineering
Faculties > Faculty of Engineering Science > Chair Polymer Engineering > Chair Polymer Engineering - Univ.-Prof. Dr.-Ing. Volker Altstädt
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields > Emerging Fields
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Research Institutions > Collaborative Research Centers, Research Unit
Research Institutions > Collaborative Research Centers, Research Unit > SFB 481 Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 26 Jun 2015 13:43
Last Modified: 09 Dec 2015 09:57
URI: https://eref.uni-bayreuth.de/id/eprint/1317