ESR Studies of Chemically Dehydrofluorinated Poly(vinylidene fluoride)
Abstract
X-band ESR of chemically dehydrofluorinated poly(vinylidene fluoride) films has been studied in the 150 ? 375 K temperature range. Dehydrofluorinated films reveal an ESR signal with g-factor close to that of the free electron. The ESR parameters (integral intensity, width, g-factor) of the samples depend on duration of the chemical reaction, storage conditions and temperature. Heating above 375 K modifies paramagnetic component of the samples stored in air irreversibly, probably, as a result of hydrogenous radicals desorption and/or removal of oxygen, hydroxyl groups and moisture from the samples on heating. The deviation from the Curie law has been revealed for all the investigated samples.
Supporting agencies: The financial support by German Academic Exchange Service (DAAD), the Ministry of Education and Science of Russia, and Russian Foundation for Basic Research (grant 07-02-96008) is gratefully acknowledged.
About the Authors
N. A. Mavrinskaya
Chelyabinsk State Pedagogical University
Russian Federation
Russian Federation
Chelyabinsk 454080
L. A. Pesin
Chelyabinsk State Pedagogical University
Russian Federation
Russian Federation
Chelyabinsk 454080
M. Baumgarten
Max-Planck-Institut fur Polymerforschung
Germany
Germany
Mainz 55128
A. V. Mavrinskiy
Chelyabinsk State Pedagogical University
Russian Federation
Russian Federation
Chelyabinsk 454080
E. M. Baitinger
NanoCompound
Germany
Germany
Baesweiler 524999
S. E. Evsyukov
Evonik Technochemie GmbH
Germany
Germany
Dossenheim 69221
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Review
For citations:
Mavrinskaya N.A., Pesin L.A., Baumgarten M., Mavrinskiy A.V., Baitinger E.M., Evsyukov S.E. ESR Studies of Chemically Dehydrofluorinated Poly(vinylidene fluoride). Magnetic Resonance in Solids. 2008;10(1):31-38.
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