Polyarylene compositions, methods of manufacture, and articles thereof

A method of forming an article, the method comprising:

• forming a preform of an element comprising the 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;
• and
• x and y the same or different, and either x or y can be zero, provided that x+y is greater than about 10;
• and
• heating the preform at a temperature and for a time in presence of a crosslinking agent effective to crosslink the polyarylene to provide the article.

A method of forming an article, the method comprising

• forming particles comprising the 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;
• and
• x and y the same or different, and either x or y can be zero, provided that x+y is greater than about 10;
• and
• shaping the particles to provide the article.