Photochemically bifunctional epoxy compound containing a chalcone moiety

Dong Hoon Choi, Sang Joon Oh, Hyo Bok Cha, Joon Youl Lee

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A new bifunctional epoxy compound was synthesized by the reaction of 4,4′-dihydroxychalcone and epichlorohydrin. Photosensitivity of the synthesized chalcone-epoxy compound was investigated by using UV-visible and Fourier transform infrared spectroscopies. The result of spectroscopic analysis substantiated that the chalcone-epoxy compound has functions of both crosslinking and cationic polymerization by UV exposure (λ = 300-360 nm). Photodimerization of the chalcone-epoxy compound was confirmed by UV-visible and IR absorbance changes of the C=C double bond of the chalcone unit. A small amount of onium salt as a photoinitiator could facilitate the cationic photopolymerization of the chalcone-epoxy compound by UV exposure. The UV-cured chalcone-epoxy compound showed an excellent thermal stability as compared to the conventional UV-cured bisphenol A type epoxy resin.

Original languageEnglish
Pages (from-to)1951-1959
Number of pages9
JournalEuropean Polymer Journal
Volume37
Issue number10
DOIs
Publication statusPublished - 2001 Oct 1
Externally publishedYes

Fingerprint

Chalcone
Cationic polymerization
Photosensitivity
Spectroscopic analysis
Photopolymerization
epoxy compounds
Epoxy Compounds
Epoxy resins
Crosslinking
Fourier transform infrared spectroscopy
Thermodynamic stability
Salts
Epichlorohydrin
Epoxy Resins
bisphenols
photosensitivity
spectroscopic analysis
epoxy resins
crosslinking
thermal stability

Keywords

  • Bifunctional epoxy
  • Cationic photopolymerization
  • Chalcone-epoxy
  • Photodimerization
  • Photosensitivity
  • Thermal stability

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Photochemically bifunctional epoxy compound containing a chalcone moiety. / Choi, Dong Hoon; Oh, Sang Joon; Cha, Hyo Bok; Lee, Joon Youl.

In: European Polymer Journal, Vol. 37, No. 10, 01.10.2001, p. 1951-1959.

Research output: Contribution to journalArticle

Choi, Dong Hoon ; Oh, Sang Joon ; Cha, Hyo Bok ; Lee, Joon Youl. / Photochemically bifunctional epoxy compound containing a chalcone moiety. In: European Polymer Journal. 2001 ; Vol. 37, No. 10. pp. 1951-1959.
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