引用本文:
高放, 杨永源, 冯树京, 毛旺民, 徐锦棋, 李立东. 长波长光敏引发聚合体系[J]. 应用化学,
1999, 16(4): 24-27.
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.
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.
长波长光敏引发聚合体系
摘要:
光敏剂3-乙酰基-7-N,N-二乙氨基香豆素(KC1)、3-(4-N,N-二乙氨基肉桂酰基)-7-N,N-二乙氨基香豆素(KC2)、3-(4-N,N-二甲氨基肉桂酰基)-7-N,N-二乙氨基香豆素(KC3)分别与引发剂邻氯代双咪唑(o-Cl-HABI)、助引发剂十二烷基硫醇(SH)组成3个波长光敏引发体系.在可见光的照射下,用膨胀计法研究了由KC1与o-Cl-HABI、SH组成的光敏体系中各个组分对甲基丙烯酸甲酯聚合反应速率的影响.胶印PS版研究表明分别由KC1、KC2、KC3与o-Cl-HABI、SH组成的3个体系在可见光的曝光下,均可得到较好的文字图像.
English
Study on the Long wavelength Photosensitive Polymerization Systems
Abstract:
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.
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Key words:
- ketocoumarin
- / biimidazole
- / photosensitive polymerization
- / dye sensitization
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