有机金属光引发剂的研究进展

【作者】 高明； 邹应全；

【机构】 北京师范大学化学学院；

【摘要】 近些年来随着辐射固化技术的发展,环保节能型辐射光源例如LED、太阳光和家用灯等对传统光引发剂提出新的挑战和课题。开发具有近紫外-可见光吸收且高光敏性的光引发剂成为新的趋势。过渡金属和稀土由于存在d轨道,其有机化合物分子轨道能级丰富,具有很好的近紫外-可见光吸收和光敏性。利用这种性质,人们已经开发出一系列的含钌,铱,钛、锗等有机金属光引发剂用于引发自由基、阳离子聚合。本文总结了近些年来有机金属光引发剂领域所取得的一些成果,并针对该类型光引发剂设计以及应用中所出现的问题进行分析,为今后新型有机金属光引发剂的开发和在辐射固化领域的发展与应用提供了一些思路。更多还原

【Abstract】 In recent years,with the development of radiation curing technology, environmentally-friendly and energy-saving radiation light sources such as LED,sunlight and household lamps have presented new challenges and problems for traditional photoinitiators.The development of photoinitiators with near UV-visible absorption and high photosensitivity has become a new trend.Due to the presence of d orbitals,transition metals and rare earth metal have abundant molecular orbital and the organic compound of these metals have good near UV-visible absorption and photosensitivity.Using this property,a series of organometallic photoinitiators containing ruthenium,iridium,titanium,germaniu have been developed for initiating free radical and cationic polymerization.This paper summarizes some of the achievements in the field of organometallic photoinitiators in recent years,and analyzes the problems in the design and application of this type of photoinitiators,and provides some ideas for the development and application of organometallic Photoinitiators in the field of radiation curing.更多还原