Rheological and mechanical properties of DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate

Soo Jin Park; Jun Gil Kang; Soo Han Kwon

doi:10.1002/pi.1783

Rheological and mechanical properties of DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate

Soo Jin Park, Jun Gil Kang, Soo Han Kwon

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4 Scopus citations

Abstract

The rheological and mechanical properties of the DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate (BQH) as a cationic latent thermal catalyst were investigated. The rheological properties of the DGEBA-S/BQH system were investigated using a rheometer under isothermal conditions, and the mechanical properties of the casting specimens, involving flexure and impact tests, were also performed. The crosslinking activation energy and mechanical properties of the DGEBA-S/BQH system were higher than those of the DGEBA/BQH system. This could be attributed to the introduction of sulfone groups with a polar nature to the main chain of the epoxy resins which led to a decrease of molecular motion and an improvement in the toughness of the cured epoxy copolymers.

Original language	English
Pages (from-to)	886-890
Number of pages	5
Journal	Polymer International
Volume	54
Issue number	6
DOIs	https://doi.org/10.1002/pi.1783
State	Published - Jun 2005
Externally published	Yes

Keywords

Activation energy
Catalyst
Epoxy resins
Mechanical behavior
Rheological properties

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10.1002/pi.1783

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title = "Rheological and mechanical properties of DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate",

abstract = "The rheological and mechanical properties of the DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate (BQH) as a cationic latent thermal catalyst were investigated. The rheological properties of the DGEBA-S/BQH system were investigated using a rheometer under isothermal conditions, and the mechanical properties of the casting specimens, involving flexure and impact tests, were also performed. The crosslinking activation energy and mechanical properties of the DGEBA-S/BQH system were higher than those of the DGEBA/BQH system. This could be attributed to the introduction of sulfone groups with a polar nature to the main chain of the epoxy resins which led to a decrease of molecular motion and an improvement in the toughness of the cured epoxy copolymers.",

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AU - Park, Soo Jin

AU - Kang, Jun Gil

AU - Kwon, Soo Han

PY - 2005/6

Y1 - 2005/6

N2 - The rheological and mechanical properties of the DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate (BQH) as a cationic latent thermal catalyst were investigated. The rheological properties of the DGEBA-S/BQH system were investigated using a rheometer under isothermal conditions, and the mechanical properties of the casting specimens, involving flexure and impact tests, were also performed. The crosslinking activation energy and mechanical properties of the DGEBA-S/BQH system were higher than those of the DGEBA/BQH system. This could be attributed to the introduction of sulfone groups with a polar nature to the main chain of the epoxy resins which led to a decrease of molecular motion and an improvement in the toughness of the cured epoxy copolymers.

AB - The rheological and mechanical properties of the DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate (BQH) as a cationic latent thermal catalyst were investigated. The rheological properties of the DGEBA-S/BQH system were investigated using a rheometer under isothermal conditions, and the mechanical properties of the casting specimens, involving flexure and impact tests, were also performed. The crosslinking activation energy and mechanical properties of the DGEBA-S/BQH system were higher than those of the DGEBA/BQH system. This could be attributed to the introduction of sulfone groups with a polar nature to the main chain of the epoxy resins which led to a decrease of molecular motion and an improvement in the toughness of the cured epoxy copolymers.

KW - Activation energy

KW - Catalyst

KW - Epoxy resins

KW - Mechanical behavior

KW - Rheological properties

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SP - 886

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JO - Polymer International

JF - Polymer International

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ER -

Rheological and mechanical properties of DGEBA-S epoxy copolymer initiated by N-benzylquinoxalinium hexafluoroantimonate

Abstract

Keywords

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