The Synthesis and Characterization of a Novel Photoinitiator for UV – LED PhotoCuring System
Yulian Pang, Beijing Normal University
Abstract:A novel photoinitiator for UV-LED PhotoCuring has been prepared which contain 3,4-ethylenedioxythiophene (EDOT) units. This compound has been fully characterizd by means of its 1H-NMR,IR and UV spectra. In addition, the study of the photosensitive performance of the synthesized photoinitiator has been carried out by means of real-time fourier transform infrared spectroscopy (RT-IR). And the results show that this new photoinitiator’s absorption spectra can well match with the emission spectra of UV-LED source and in the meanwhile it also has good thermal stability, good storage stability in UV-curable formations and high photoinitiating activity.