A new procedure to analyze glass-transition peaks in polymers

A new procedure for analyzing internal friction peaks as a function of temperature has been developed. The true and apparent energies of activation of the involved processes can be obtained independently from each other. The procedure is applied to internal friction peaks in poly(methyl methacrylate...

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Detalles Bibliográficos
Autores principales:	Matteo, C.L., Goyanes, S.N.
Formato:	JOUR
Materias:	Activation energy Glass transition Molecular dynamics Polymethyl methacrylates Thermal effects Distribution function Glass transition peaks Internal friction peaks Internal friction
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00218995_v61_n10_p1797_Matteo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00218995_v61_n10_p1797_Matteo
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spelling	todo:paper_00218995_v61_n10_p1797_Matteo2023-10-03T14:22:29Z A new procedure to analyze glass-transition peaks in polymers Matteo, C.L. Goyanes, S.N. Activation energy Glass transition Molecular dynamics Polymethyl methacrylates Thermal effects Distribution function Glass transition peaks Internal friction peaks Internal friction A new procedure for analyzing internal friction peaks as a function of temperature has been developed. The true and apparent energies of activation of the involved processes can be obtained independently from each other. The procedure is applied to internal friction peaks in poly(methyl methacrylate); the results for both energies agree with experimental values found in the literature. Finally, it is shown that the parameter that relates the true and apparent energies is a function of the halfwidth of the distribution function associated with the internal friction and therefore is associated with molecular movements. © 1996 John Wiley & Sons, Inc. Fil:Matteo, C.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00218995_v61_n10_p1797_Matteo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Activation energy Glass transition Molecular dynamics Polymethyl methacrylates Thermal effects Distribution function Glass transition peaks Internal friction peaks Internal friction
spellingShingle	Activation energy Glass transition Molecular dynamics Polymethyl methacrylates Thermal effects Distribution function Glass transition peaks Internal friction peaks Internal friction Matteo, C.L. Goyanes, S.N. A new procedure to analyze glass-transition peaks in polymers
topic_facet	Activation energy Glass transition Molecular dynamics Polymethyl methacrylates Thermal effects Distribution function Glass transition peaks Internal friction peaks Internal friction
description	A new procedure for analyzing internal friction peaks as a function of temperature has been developed. The true and apparent energies of activation of the involved processes can be obtained independently from each other. The procedure is applied to internal friction peaks in poly(methyl methacrylate); the results for both energies agree with experimental values found in the literature. Finally, it is shown that the parameter that relates the true and apparent energies is a function of the halfwidth of the distribution function associated with the internal friction and therefore is associated with molecular movements. © 1996 John Wiley & Sons, Inc.
format	JOUR
author	Matteo, C.L. Goyanes, S.N.
author_facet	Matteo, C.L. Goyanes, S.N.
author_sort	Matteo, C.L.
title	A new procedure to analyze glass-transition peaks in polymers
title_short	A new procedure to analyze glass-transition peaks in polymers
title_full	A new procedure to analyze glass-transition peaks in polymers
title_fullStr	A new procedure to analyze glass-transition peaks in polymers
title_full_unstemmed	A new procedure to analyze glass-transition peaks in polymers
title_sort	new procedure to analyze glass-transition peaks in polymers
url	http://hdl.handle.net/20.500.12110/paper_00218995_v61_n10_p1797_Matteo
work_keys_str_mv	AT matteocl anewproceduretoanalyzeglasstransitionpeaksinpolymers AT goyanessn anewproceduretoanalyzeglasstransitionpeaksinpolymers AT matteocl newproceduretoanalyzeglasstransitionpeaksinpolymers AT goyanessn newproceduretoanalyzeglasstransitionpeaksinpolymers
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A new procedure to analyze glass-transition peaks in polymers

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