Organometallic Monomers and high Refractive index Polymers derived therefrom

摘要

Synthesis of thianthrene moiety containing silane and germane monomers and their polymerization is presented. The polymers show high refractive index, high transparency and excellent thermal stability. They are useful as dielectric films for semiconductor industry and for optical applications, including high-RI materials in CMOS image sensors.

主权项

1. Thianthrene containing metalloid monomer of one of formulas I, II, III, IV, V and VI, wherein Z is a metalloid selected from silicon and germanium; A1, A2, A3, A4, A5, A6, A7 are independently selected from the group of hydrogen, linear or branched alkyl groups, aryl groups, and halo groups; and R1, R2, R3, R4, R5, and R6 are independently selected from the group of hydrogen, linear or branched alkyl groups, linear or branched alkoxy groups, halo groups, acyloxy groups, and aliphatic or aromatic cyclic groups, with the proviso that at least one of R1, R2, R3, R4, R5, and R6 is a hydrolyzable group.