Patent ID: 9194981
Filing Date: 2015-11-24
Classification: C07D,G02B,G02F

Abstract:
1. A method of synthesizing an electro-optical material comprising a polymer having a poly(imido sulfide) backbone and an electro-optical chromophore having general Formula I: the method comprising reacting a sulfide with a N-(halogenated biphenyl) bismaleimide and with the optical chromophore in a solvent utilizing a catalyst; maintaining the reaction temperature between about 20° C. and about 60° C. for about two hours; precipitating the resulting polymer into a solution of methanol and hydrochloric acid; washing the resulting precipitated polymer with methanol; drying the polymer in a vacuum oven thereby obtaining an EO material; wherein, in the compound of Formula I; C* denotes a chiral carbon atom; D is an electron donating group; B comprises at least one bivalent ring; R R R or R the compound of Formula I has, at any location, at least one terminal —SH group capable of reacting with a maleimide bond.