Patent ID: 8822628

Claim:
A crosslinkable liquid crystalline polymer formed by polymerizing a precursor monomer in the presence of an aromatic alkynyl crosslinking agent having the following general formula (I): wherein, ring B is a 6-membered aromatic ring wherein 1 to 3 ring carbon atoms are optionally replaced by nitrogen or oxygen, wherein each nitrogen is optionally oxidized, and wherein ring B may be optionally fused or linked to a 5- or 6-membered aryl, heteroaryl, cycloalkyl, or heterocyclyl; R 5 is alkynyl, alkyl, alkenyl, aryl, heteroaryl, cycloalkyl, heterocyclyl, halo, or haloalkyl; m is from 0 to 4; n is from 0 to 6; Y is O, S, or NR 3 ; R 1 is alkyl or alkenyl; R 2 is hydrogen, alkyl, aryl, heteroaryl, cycloalkyl, or heterocyclyl; and R 3 is hydrogen, alkyl, aryl, heteroaryl, cycloalkyl, or heterocyclyl.