Effect of urethane functionality and number of epoxide groups on cure and mechanical behaviors of epoxy resins

Soo Jin Park; Gun Young Heo; Fan Long Jin; Kyong Yop Rhee

doi:10.1007/s13233-015-3015-3

Effect of urethane functionality and number of epoxide groups on cure and mechanical behaviors of epoxy resins

Soo Jin Park
, Gun Young Heo
, Fan Long Jin
, Kyong Yop Rhee

Research output: Contribution to journal › Article › peer-review

Abstract

We report the synthesis of the novel bi- and tetrafunctional epoxy resins, 2-ECI and 4-ECI, containing urethane functionality. Their chemical structures were characterized by Fourier transform infrared spectroscopy (FTIR) and ¹H nuclear magnetic resonance (¹H NMR) spectroscopy. The effects of urethane functionality and the number of epoxide groups on the curing behavior and physical and mechanical properties of the epoxy resins were investigated. Compared to 4-ECI, 2-ECI was more reactive with the curing agent methyl hexahydrophthalic anhydride. However, the shear strength and critical stress intensity factor values of the cured 4-ECI resin were significantly higher than those of the cured bisphenol-A diglycidylether and 2-ECI resin, which was attributed to the synergistic effects of urethane functionality and high cross-linking density in the cured 4-ECI resin.

[Figure not available: see fulltext.]

Original language	English
Pages (from-to)	134-138
Number of pages	5
Journal	Macromolecular Research
Volume	23
Issue number	2
DOIs	https://doi.org/10.1007/s13233-015-3015-3
Publication status	Published - 1 Feb 2015
Externally published	Yes

Keywords

cure behavior
cyanate group
epoxy resins
mechanical properties
shear strength

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10.1007/s13233-015-3015-3

Cite this

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title = "Effect of urethane functionality and number of epoxide groups on cure and mechanical behaviors of epoxy resins",

abstract = "We report the synthesis of the novel bi- and tetrafunctional epoxy resins, 2-ECI and 4-ECI, containing urethane functionality. Their chemical structures were characterized by Fourier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR) spectroscopy. The effects of urethane functionality and the number of epoxide groups on the curing behavior and physical and mechanical properties of the epoxy resins were investigated. Compared to 4-ECI, 2-ECI was more reactive with the curing agent methyl hexahydrophthalic anhydride. However, the shear strength and critical stress intensity factor values of the cured 4-ECI resin were significantly higher than those of the cured bisphenol-A diglycidylether and 2-ECI resin, which was attributed to the synergistic effects of urethane functionality and high cross-linking density in the cured 4-ECI resin.[Figure not available: see fulltext.]",

keywords = "cure behavior, cyanate group, epoxy resins, mechanical properties, shear strength",

author = "Park, \{Soo Jin\} and Heo, \{Gun Young\} and Jin, \{Fan Long\} and Rhee, \{Kyong Yop\}",

note = "Publisher Copyright: {\textcopyright} 2015, The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht.",

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doi = "10.1007/s13233-015-3015-3",

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journal = "Macromolecular Research",

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}

TY - JOUR

T1 - Effect of urethane functionality and number of epoxide groups on cure and mechanical behaviors of epoxy resins

AU - Park, Soo Jin

AU - Heo, Gun Young

AU - Jin, Fan Long

AU - Rhee, Kyong Yop

PY - 2015/2/1

Y1 - 2015/2/1

N2 - We report the synthesis of the novel bi- and tetrafunctional epoxy resins, 2-ECI and 4-ECI, containing urethane functionality. Their chemical structures were characterized by Fourier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR) spectroscopy. The effects of urethane functionality and the number of epoxide groups on the curing behavior and physical and mechanical properties of the epoxy resins were investigated. Compared to 4-ECI, 2-ECI was more reactive with the curing agent methyl hexahydrophthalic anhydride. However, the shear strength and critical stress intensity factor values of the cured 4-ECI resin were significantly higher than those of the cured bisphenol-A diglycidylether and 2-ECI resin, which was attributed to the synergistic effects of urethane functionality and high cross-linking density in the cured 4-ECI resin.[Figure not available: see fulltext.]

AB - We report the synthesis of the novel bi- and tetrafunctional epoxy resins, 2-ECI and 4-ECI, containing urethane functionality. Their chemical structures were characterized by Fourier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR) spectroscopy. The effects of urethane functionality and the number of epoxide groups on the curing behavior and physical and mechanical properties of the epoxy resins were investigated. Compared to 4-ECI, 2-ECI was more reactive with the curing agent methyl hexahydrophthalic anhydride. However, the shear strength and critical stress intensity factor values of the cured 4-ECI resin were significantly higher than those of the cured bisphenol-A diglycidylether and 2-ECI resin, which was attributed to the synergistic effects of urethane functionality and high cross-linking density in the cured 4-ECI resin.[Figure not available: see fulltext.]

KW - cure behavior

KW - cyanate group

KW - epoxy resins

KW - mechanical properties

KW - shear strength

UR - https://www.scopus.com/pages/publications/84925503052

U2 - 10.1007/s13233-015-3015-3

DO - 10.1007/s13233-015-3015-3

M3 - Article

AN - SCOPUS:84925503052

SN - 1598-5032

VL - 23

SP - 134

EP - 138

JO - Macromolecular Research

JF - Macromolecular Research

IS - 2

ER -

Effect of urethane functionality and number of epoxide groups on cure and mechanical behaviors of epoxy resins

Abstract

Keywords

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