Patent ID: 9158195
Filing Date: 2015-10-13
Classification: C08G,C09D,G03F,H01L

Abstract:
1. A method of producing a silicon polymer material, which has a silicon polymer backbone with chromophore groups attached directly to at least a part of the silicon atoms, the polymer further exhibiting carbosilane bonds, comprising the steps of reacting at least one monomer having Formula I, II or V wherein R 1 , R 2 , R 3 and R 4 are independently and optionally substituted by one or several substituents selected from fluoro, bromo, C 1-10 -alkyl, C 1-10 -alkoxy, C 2-10 -alkenyl, C 6-18 -aryl, acryl, epoxy, carboxyl and carbonyl groups and/or an alkoxycarbodisilane, acyloxycarbodisilane, or chlorocarbodisilane having at least one hydrocarbon group attached directly to one of the two Si atom of carbodisilane which hydrocarbon group includes an aromatic ring, optionally with at least one monomer of formulas III, IV or VI wherein R R R each X and X′ represents independently a hydrolysable group or a hydrocarbon residue; and each a and b are independently an integer 1 to 3, in the presence of a solvent and a catalyst and recovering the reaction product, comprising the steps of: forming a reaction mixture of the monomers and a first solvent; subjecting the monomers in the presence of a catalyst and a first solvent to hydrolysis to form a first product; removing the first solvent from the reaction mixture and adding a second solvent; and subjecting the first product to condensation polymerization in the second solvent to obtain a condensation product having a higher molecular weight than the first product.