Relaxations of bisphenol A‐based epoxides cured with aliphatic diamines

Mami Matsukawa; Hirotaka Okabe; Kazumi Matsushige

doi:10.1002/app.1993.070500109

Relaxations of bisphenol A‐based epoxides cured with aliphatic diamines

Mami Matsukawa, Hirotaka Okabe, Kazumi Matsushige

Applied Physics

Research output: Contribution to journal › Article

15 Citations (Scopus)

Abstract

The main α and sub β relaxations in bisphenol A‐based epoxides cured by two kinds of aliphatic diamines were examined in wide temperature and frequency ranges by using middle‐frequency dynamic, dielectric, and ultrasonic measuring systems. The obtained temperature–frequency correlation maps revealed an Arrhenius‐type behavior for the β relaxation with apparent activation energy of 16 kcal/mol. For the α relaxation, the maps were in good agreement with the W.L.F. equation. Owing to the similarity of structure in these resins, both maps showed the same tendencies. © 1993 John Wiley & Sons, Inc.

Original language	English
Pages (from-to)	67-73
Number of pages	7
Journal	Journal of Applied Polymer Science
Volume	50
Issue number	1
DOIs	https://doi.org/10.1002/app.1993.070500109
Publication status	Published - Jan 1 1993

All Science Journal Classification (ASJC) codes

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.1993.070500109

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abstract = "The main α and sub β relaxations in bisphenol A‐based epoxides cured by two kinds of aliphatic diamines were examined in wide temperature and frequency ranges by using middle‐frequency dynamic, dielectric, and ultrasonic measuring systems. The obtained temperature–frequency correlation maps revealed an Arrhenius‐type behavior for the β relaxation with apparent activation energy of 16 kcal/mol. For the α relaxation, the maps were in good agreement with the W.L.F. equation. Owing to the similarity of structure in these resins, both maps showed the same tendencies. {\textcopyright} 1993 John Wiley & Sons, Inc.",

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AB - The main α and sub β relaxations in bisphenol A‐based epoxides cured by two kinds of aliphatic diamines were examined in wide temperature and frequency ranges by using middle‐frequency dynamic, dielectric, and ultrasonic measuring systems. The obtained temperature–frequency correlation maps revealed an Arrhenius‐type behavior for the β relaxation with apparent activation energy of 16 kcal/mol. For the α relaxation, the maps were in good agreement with the W.L.F. equation. Owing to the similarity of structure in these resins, both maps showed the same tendencies. © 1993 John Wiley & Sons, Inc.

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