Abstract
A novel fully aromatic sul-containing macrocycle-terminated poly(aryl ether ketone) (PAEK-C) was prepared by condensation of macrocyclic aryl ether ketone dimers containing hydroxyphenyl groups and a fluorine end-capped poly(aryl ether ketone) oligomer. The PAEK-C exhibited high thermal stability due to its wholly aromatic structure. The crosslinking reaction of PAEK-C could allow fully aromatic thermoset poly(aryl ether ketone) by ring-opening reaction without the existence of catalyst. After crosslinking, the glass transition temperature of the thermoset increased greatly. The obtained poly(aryl ether ketone) thermoset had good thermal stability with 5% weight loss temperature above 500 o C in N2.
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