| 摘要 |
The present invention relates to a photoinitiator represented by a chemical formula 1 and a preparing method thereof. A composite sheet using the photoinitiator prevents phase separation from being occurred, has excellent uniformity and drastically increases dispersible properties and diffusion coefficient.[The chemical formula 1](In the chemical formula 1, R1, R2, R3, R4, R5 and respectively are a substituted or non-substituted alkyl group of C1-C5 or a substituted or non-substituted aryl group of C6-C12, R is a methyl group or hydrogen, A is a group induced from a light initiator with a ketone group, Z is substituted or non-substituted alkylene of C1-C10 or substituted or non-substituted arylene of C6-C20, m is an integer of 1-10, and n is an integer of 1-30) |
