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Crosslinking of poly(arylene ether ketone)s 1. Rheological behavior of the melt and mechanical properties of cured resin
Author(s) -
Chan C.M.,
Venkatraman S.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070320722
Subject(s) - arylene , materials science , glass transition , ether , rheology , ketone , composite material , polymer chemistry , stress relaxation , ultimate tensile strength , creep , polymer , organic chemistry , chemistry , alkyl , aryl
Elemental sulfur has been used to crosslink poly(arylene ether ketone)s. Evidence for crosslinking is presented in terms of rheological data of the melt. The effects of crosslinking on mechanical properties have been examined using tensile creep, stress–relaxation, and dynamic‐mechanical properties in torsion. The crosslinking elevates the glass transition temperature ( T g ), as measured by the maximum in the loss tangent, and reduces creep strain at temperatures above T g . A new technique for monitoring cure is also presented. One of the advantages of this method for crosslinking poly(arylene ether ketone)s is that the crosslinking can be carried out both in the solid state and in the melt, the rate being dependent on the temperature (above T g ) of annealing.