Synthesis and Research of Properties of Polyether Ether Ketone

Abstract

Polyether ether ketones based on 4,4'-difluorobenzophenone and hydroquinone in sulfolane medium in the presence of anhydrous potassium carbonate were synthesized by the method of high-temperature polycondensation. The rheological, thermal, electrical and physical-mechanical properties are investigated. It is shown that, at processing temperatures, the molecular weight of polyether ether ketones synthesized in sulfolane increases, apparently due to the branching processes of the polymer chain.

Investigation of the Wetting Process of Glass Fiber with Oligophenylene Sulfide Sulfone

“…Thus, we were interested to study the finishing ability of the oligophenylene sulfide sulfone synthesized by us [25].…”

Synthesis of Aromatic Polyether Ketones by Electrophilic Substitution

“…In industry, polyether ketones are produced in two main ways: nucleophilic and electrophilic. The nucleophilic method for the preparation of simple aromatic polyesters is widespread due to the availability of the starting monomers: bisphenols and dihalogen-containing aromatic compounds of various structures, as well as to the production of polyether ketones and copolyether ketones with adjustable properties in a wide range [2][3][4]. Currently, PEKs synthesized by the method of nucleophilic substitution are produced on a large scale in countries such as the USA, Great Britain, Germany, Japan, and China [5].…”