Photoreaction and photoinitiation behavior in the light-cured dental composite resins

Yukio Fujimori; Takashi Kaneko; Hiroyuki Nishide; Eishun Tsuchida

Photoreaction and photoinitiation behavior in the light-cured dental composite resins

Yukio Fujimori^*, Takashi Kaneko, Hiroyuki Nishide, Eishun Tsuchida

^*この研究の対応する著者

理工学術院総合研究所

研究成果: Article › 査読

5 被引用数 (Scopus)

抄録

Photoreaction of camphorquinone (CQ) and dimethylaminoethyl methacrylate (DMAEMA) and its initiation capability of MMA polymerization was studied as a model system for visible light-cured dental composite resins. The photo-sensitizer (CQ) produced CQ radical anion by irradiation in the presence of the reducing agent (DMAEMA) under N₂. ESR signal intensity and the IR and UV-Vis absorption spectra of CQ carbonyl group decreased during irradiation, and the polymerization rate of MMA depended on the decrease in the CQ carbonyl group. The hydrogen abstraction reaction by CQ radical seemed to promote the polymerization of MMA. Atmospheric oxygen inactivated the CQ radical and reduced the polymerization.

本文言語	English
ページ（範囲）	485-488
ページ数	4
ジャーナル	Kobunshi Ronbunshu
巻	50
号	6
出版ステータス	Published - 1993

ASJC Scopus subject areas

化学工学（その他）
環境科学（全般）
材料科学（その他）
セラミックおよび複合材料
ポリマーおよびプラスチック

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引用スタイル

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abstract = "Photoreaction of camphorquinone (CQ) and dimethylaminoethyl methacrylate (DMAEMA) and its initiation capability of MMA polymerization was studied as a model system for visible light-cured dental composite resins. The photo-sensitizer (CQ) produced CQ radical anion by irradiation in the presence of the reducing agent (DMAEMA) under N2. ESR signal intensity and the IR and UV-Vis absorption spectra of CQ carbonyl group decreased during irradiation, and the polymerization rate of MMA depended on the decrease in the CQ carbonyl group. The hydrogen abstraction reaction by CQ radical seemed to promote the polymerization of MMA. Atmospheric oxygen inactivated the CQ radical and reduced the polymerization.",

author = "Yukio Fujimori and Takashi Kaneko and Hiroyuki Nishide and Eishun Tsuchida",

year = "1993",

language = "English",

volume = "50",

pages = "485--488",

journal = "Kobunshi Ronbunshu",

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TY - JOUR

T1 - Photoreaction and photoinitiation behavior in the light-cured dental composite resins

AU - Fujimori, Yukio

AU - Kaneko, Takashi

AU - Nishide, Hiroyuki

AU - Tsuchida, Eishun

PY - 1993

Y1 - 1993

N2 - Photoreaction of camphorquinone (CQ) and dimethylaminoethyl methacrylate (DMAEMA) and its initiation capability of MMA polymerization was studied as a model system for visible light-cured dental composite resins. The photo-sensitizer (CQ) produced CQ radical anion by irradiation in the presence of the reducing agent (DMAEMA) under N2. ESR signal intensity and the IR and UV-Vis absorption spectra of CQ carbonyl group decreased during irradiation, and the polymerization rate of MMA depended on the decrease in the CQ carbonyl group. The hydrogen abstraction reaction by CQ radical seemed to promote the polymerization of MMA. Atmospheric oxygen inactivated the CQ radical and reduced the polymerization.

AB - Photoreaction of camphorquinone (CQ) and dimethylaminoethyl methacrylate (DMAEMA) and its initiation capability of MMA polymerization was studied as a model system for visible light-cured dental composite resins. The photo-sensitizer (CQ) produced CQ radical anion by irradiation in the presence of the reducing agent (DMAEMA) under N2. ESR signal intensity and the IR and UV-Vis absorption spectra of CQ carbonyl group decreased during irradiation, and the polymerization rate of MMA depended on the decrease in the CQ carbonyl group. The hydrogen abstraction reaction by CQ radical seemed to promote the polymerization of MMA. Atmospheric oxygen inactivated the CQ radical and reduced the polymerization.

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M3 - Article

AN - SCOPUS:0027150707

SN - 0386-2186

VL - 50

SP - 485

EP - 488

JO - Kobunshi Ronbunshu

JF - Kobunshi Ronbunshu

IS - 6

ER -

Photoreaction and photoinitiation behavior in the light-cured dental composite resins

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ASJC Scopus subject areas

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