NOVEL CYCLIC SILOXANE COMPOUND, METHOD FOR PREPARING THEREOF, COMPOSITE SHEET COMPRISING THE SAME, AND DISPLAY SUBSTRATE USING THE COMPOSITE SHEET

摘要

The present invention relates to a cyclic siloxane compound represented by a chemical formula 5. A composite sheet containing the cyclic siloxane compound can have the Abbe number of more than 45.[chemical formula 5](In the chemical formula 5, R1 and R2 are independently hydrogen, a substituted or non-substituted alkyl group of C1-C5, or a substituted or non-substituted aryl group of C6-C12. R3, R4, R6 and R7 are independently a substituted or non-substituted alkyl group of C1-C5, or a substituted or non-substituted aryl group of C6-C12. R5 and R8 are independently hydrogen or a vinyl group. k and l are an integer of 1-20. n and m are an integer of 1-6. And n+m is 3-6)