Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide

The dielectric relaxation in two polyamides has been studied over a temperature range from −100 to 175 °C and a frequency range from 50 c/s to 10 Mc/s. The effects of various thermal treatments on the relaxation behavior and density, X-ray diffraction, and intrinsic viscosity have been studied. The...

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Detalles Bibliográficos
Autor principal: Curtis, Alexander J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1961
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5287278/
https://www.ncbi.nlm.nih.gov/pubmed/32196236
http://dx.doi.org/10.6028/jres.065A.022
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author Curtis, Alexander J.
author_facet Curtis, Alexander J.
author_sort Curtis, Alexander J.
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description The dielectric relaxation in two polyamides has been studied over a temperature range from −100 to 175 °C and a frequency range from 50 c/s to 10 Mc/s. The effects of various thermal treatments on the relaxation behavior and density, X-ray diffraction, and intrinsic viscosity have been studied. The polyamides were poly(hexamethylene adipamide) and poly(hexamethylene sebacamide). Four relaxation phenomena have been identified. Mechanical relaxation processes are compared with the dielectric phenomena and possible molecular mechanisms are discussed.
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spelling pubmed-52872782020-03-18 Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide Curtis, Alexander J. J Res Natl Bur Stand A Phys Chem Article The dielectric relaxation in two polyamides has been studied over a temperature range from −100 to 175 °C and a frequency range from 50 c/s to 10 Mc/s. The effects of various thermal treatments on the relaxation behavior and density, X-ray diffraction, and intrinsic viscosity have been studied. The polyamides were poly(hexamethylene adipamide) and poly(hexamethylene sebacamide). Four relaxation phenomena have been identified. Mechanical relaxation processes are compared with the dielectric phenomena and possible molecular mechanisms are discussed. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1961 1961-06-01 /pmc/articles/PMC5287278/ /pubmed/32196236 http://dx.doi.org/10.6028/jres.065A.022 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Bureau of Standards Section A is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
spellingShingle Article
Curtis, Alexander J.
Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title_full Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title_fullStr Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title_full_unstemmed Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title_short Dielectric Properties of Polyamides: Polyhexamethylene Adipamide and Polyhexamethylene Sebacamide
title_sort dielectric properties of polyamides: polyhexamethylene adipamide and polyhexamethylene sebacamide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5287278/
https://www.ncbi.nlm.nih.gov/pubmed/32196236
http://dx.doi.org/10.6028/jres.065A.022
work_keys_str_mv AT curtisalexanderj dielectricpropertiesofpolyamidespolyhexamethyleneadipamideandpolyhexamethylenesebacamide

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