| 阳离子光引发剂[CpFe(η~6-tol)]BF_4光聚合活性及增感的研究 |
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| 引用本文： | 柳冀,王涛,黄毓礼.阳离子光引发剂[CpFe(η~6-tol)]BF_4光聚合活性及增感的研究[J].影像科学与光化学,2002,20(3). |
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| 作者姓名： | 柳冀 王涛 黄毓礼 |
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| 作者单位： | 北京化工大学材料科学与工程学院105号信箱,北京,100029 |
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| 摘 要： | 研究了阳离子光引发剂 CpFe(η6 tol) ]BF4引发脂环族环氧树脂ERL 4 2 2 1阳离子光聚合的活性 .其响应峰在 374nm和 4 5 0nm处 ,大于二甲苯基碘盐的 2 4 0nm ,具有更高的感度 .同时 ,研究了一些不同种类的过氧化物对CpFe(η6 tol) ]BF4的增感作用 ,敏化效果与其氧化性一致 :过氧化羟基异丙苯(CHP)≈过氧化苯甲酰 (BPO) >过氧化二异丙苯 (DCP) ,研究了光敏体系的紫外吸收光谱和荧光发射光谱 ,对增感机理作出初步解释
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| 关 键 词： | 芳茂铁盐 紫外光固化 脂环族环氧树脂 增感作用 |
STUDY ON THE PHOTOSENSITIVITY AND SENSITIZATION OF CATIONIC PHOTOINITIATOR [CpFe(η6-tol)]BF4 |
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| Abstract: | The photosensitivity of cationic polymerization of cycloaliphatic diepoxide oligomer ERL 4221 initiated by photoinitiator CpFe(η 6 tol)]BF 4 has been studied.The main absorptions λ max are 374 nm and 450 nm which are longer than those of diaryliodonium salts.The optimized photosensitivity is 283.8 mJ/cm 2 when irradiated by 365 nm UV ray,which is better than tol 2I +BF 4 -.Meanwhile,the promotion of some kinds of organic peroxides on polymerization of alicyclic diexpoxide oligomer which initiated by CpFe(η 6 tol)]BF 4 have been studied.lt shows that BPO and CHP could promote the initiation of CpFe(η 6 tol)]BF 4 significantly,in accordance with the oxidability and concentration of the peroxide.The mechanism of the sensitization has been discussed preliminarily. |
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| Keywords: | iron arene complex cationic polymerization cycloaliphatic epoxide sensitization |
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