Patent ID: 8829119

Claim:
A crosslinked product of a polyarylene of formula (1) wherein each Ar is the same or different, and is independently a C6-C32 aromatic group having only carbon atoms in the ring, R is a substituent on the aromatic group wherein each R is the same or different, and each R is independently a C1-C20 hydrocarbyl group, C1-C20 hydrocarbyloxy group, C1-C20 hydrocarbylthio group, trialkylsilyl group, halogen, nitro group, cyano group, hydroxyl group, mercapto group, hydrocarbyl carbonyl group, formyl group, C1-C20 dihydrocarbyl ether group, carboxylic acid group or a salt thereof, carboxylic ester group, primary, secondary or tertiary amino group, primary or secondary aminocarbonyl group, phosphonic acid group or a salt thereof, sulfonic acid group or a salt thereof, polyalkyleneoxy group, or polyphenyleneoxy group, b is an integer from 0-10, provided that the valence of Ar is not exceeded; x and y are the same or different, and either x or y can be zero, provided that x+y is greater than about 10; and the polyarylene is crosslinked.