Crystallization observed from the spin behavior in poly(3-methylthiophene)
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Undergraduate course
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Elsevier B.V.
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Article
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Abstract
Electron Spin Resonance (ESR) data in pressed pellets of doped poly(3-methylthiophene) (P3MT) show a single ESR line that changes into a broad and a narrow superimposed lines below 225K. D.C. susceptibility measurements using a SQUID susceptometer didn't reveal any special feature at this temperature. Assuming crystallization of the polymer, we attribute the broad line to the crystalline fraction of the polymer and the narrow line to the amorphous one.
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Keywords
electron spin resonance, magnetic measurements, structural phase transitions, polythiophene and derivatives
Language
English
Citation
Synthetic Metals. Lausanne: Elsevier B.V. Sa, v. 101, n. 1-3, p. 355-355, 1999.
