芳茂铁阳离子聚合光引发剂引发活性研究  

Studies on the Photosensitivity of Cationic Polymerization Photoinitiator [Cp-Fe-arene]BF_4

作　　者：王涛[1] 黄毓礼[2] 师树简[1] 

机构地区：[1]北京化工大学理学院化学系,北京100029 [2]北京化工大学材料科学与工程学院

出　　处：《高等学校化学学报》2003年第4期735-738,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 97760 0 2 )

摘　　要：研究了 7种不同芳烃结构的芳茂铁四氟硼酸盐作为阳离子紫外光聚合和光固化引发剂在环氧体系中的光引发活性 ,其中 [C5H5Fe 2 ,5 -( CH3) 2 CO-C6 H3]BF4 ( )和 [CH3CO-C5H4 Fe 2 ,4-( CH3) 2 -C6 H4 ]BF4 ( )为新物质 .研究发现 ,这 7个芳茂铁四氟硼酸盐在 3 70和 45 0 nm附近均有较强吸收 ;芳环上引入共轭 C C和共轭 C O使吸收峰发生红移 ,且使摩尔消光系数和感光速度均有所提高 ,更适合于以高压汞灯为辐射光源的长波紫外固化 ;芳茂铁四氟硼酸盐可以引发环氧树脂、脂环族和脂肪族缩水甘油基环氧单分子 ,通过加热或使用有机过氧化物 [如过氧化苯甲酰 ( BPO)The photosensitivity in the expoxide system of several arene cyclopentadienyl iron tetroflouroborate salts with different structures was studied. Among them, [C 5H 5Fe 2,5 (CH 3) 2CO C 6H 3]BF 4 and [CH 3CO C 5H 4Fe 2,4 (CH 3) 2 C 6H 4]BF 4 are new compounds. The study shows that all the salts have two main absorptions near 370 and 450 nm. It also shows that those with CC group and CO group have a stronger absorption and higher photosensitivity, and can be suitable for the light cured reaction irradiated by high pressure mercury lamp. Meanwhile, the study also shows that some kinds of organic expoxides including multifunctional epoxy resins, cycloaliphatic epoxides and glycidylethers can be initiated by these salts. Heating or adding BPO could prompt the rate of polymerization significantly.

关 键 词：引发活性 芳茂铁四氟硼酸盐 阳离子聚合光引发剂 感光速度 环氧化合物 聚合速度 

分 类 号：O633.13[理学—高分子化学] O631.5[理学—化学]