PHOTOINITIATORS WITH FLUORENE STRUCTURE AND REACTIVE LIQUID CRYSTAL COMPOSITIONS, AND PHOTORESIST COMPOSITIONS COMPRISING THE SAME

摘要

The present invention relates to a novel photoinitiator with a fluorene structure and a reactive liquid crystal composition and a photoresist composition including the same, and to a novel photoinitiator with a fluorene structure having high absorption rate of long wavelength with respect to a UV light source and exhibiting good reactivity on internal curing and having good photosensitivity and reaction conversion rate and having good compatibility in a reactive liquid crystal composition and a photosensitive composition, and a reactive liquid crystal composition and a photoresist composition including the same. The novel photoinitiator with a fluorene structure of the present invention is characterized in being represented by the following [General Formula]. In the above [General Formula], R_1 and R_2 are independently hydrogen (where both R_1 and R_2 are not hydrogen at the same time) and selected from a photo initiator group represented by [Formula 1] to [Formula 9], and R_3 and R_4 are independently hydrogen, fluorine and a linear or branched alkyl having 1 to 4 carbon atoms.