Polyethylene structure has been investigated by energy dispersive X-ray diffraction (EDXD) as a function of temperature below the melting point, via Rietveld refinement. The behavior was studied at four temperatures, namely 25, 40, 70, and 88 degrees C. In this range the structure undergoes a regular volume expansion that may be expressed in terms of specific volume ratio as V-E/V-25 degrees C = 0.991(2) + 4.0(5) x 10(-4) x T(degrees C). The variation is almost completely taken up by the a cell parameter and results, apart for minor intrachain arrangements, in an increased distance between polymer chains.

Caminiti, R., Ballirano, P., & Carbone, M. (2006). Polyethylene structure as a function of temperature: An EDXD investigation. JOURNAL OF MACROMOLECULAR SCIENCE. PHYSICS, 45 B(6), 1005-1014 [10.1080/00222340600735106].

Polyethylene structure as a function of temperature: An EDXD investigation

CARBONE, MARILENA
2006

Abstract

Polyethylene structure has been investigated by energy dispersive X-ray diffraction (EDXD) as a function of temperature below the melting point, via Rietveld refinement. The behavior was studied at four temperatures, namely 25, 40, 70, and 88 degrees C. In this range the structure undergoes a regular volume expansion that may be expressed in terms of specific volume ratio as V-E/V-25 degrees C = 0.991(2) + 4.0(5) x 10(-4) x T(degrees C). The variation is almost completely taken up by the a cell parameter and results, apart for minor intrachain arrangements, in an increased distance between polymer chains.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore CHIM/03 - Chimica Generale e Inorganica
Settore CHIM/02 - Chimica Fisica
English
Con Impact Factor ISI
Energy dispersive X-ray diffraction (EDXD); High-density polyethylene; Low-density polyethylene; Rietveld refinement; Ultra high molecular weight polyethylene
10
Caminiti, R., Ballirano, P., & Carbone, M. (2006). Polyethylene structure as a function of temperature: An EDXD investigation. JOURNAL OF MACROMOLECULAR SCIENCE. PHYSICS, 45 B(6), 1005-1014 [10.1080/00222340600735106].
Caminiti, R; Ballirano, P; Carbone, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/26176
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