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Citation: Gao Fang, Yang Yongyuan, Feng Sujing, Mao Wangmin, Xu Jingqi, Li Lidong. Study on the Long wavelength Photosensitive Polymerization Systems[J]. Chinese Journal of Applied Chemistry, ;1999, 16(4): 24-27. shu

Study on the Long wavelength Photosensitive Polymerization Systems

1.
Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101

Received Date: 4 October 1998
Available Online: 16 April 1999
Fund Project: 国家自然科学基金资助项目(59773011) (59773011)

Three long-wavelength photosensitive initiation systems composed of photosensitizer 3-acetyl-7-N,N-diethyl-aminocoumarin(KC1), 3-(4-N,N-diethylaminocinnamoyl)-7-N,N-die-thylaminocoumarin (KC2), 3-(4-N,N-dimethylaminocinnamoyl)-7-N,N-diethylaminocou-marin (KC3) respectively with photoinitiator 2-chlorohexaarylbiimidazole(o-Cl-HABI) and coinitiator n-dodecanethiol(SH) have been studied. The relationship between the photopolymerization rate of MMA under visible light and concentration of KC1, o-Cl-HABI and SH in a system has veen examined by dilatometry. Good images in offset printing was obtained when the studied systems were irradiatied by visible light.
- ketocoumarin,
- biimidazole,
- photosensitive polymerization,
- dye sensitization
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