Journal ArticleDOI
Syntheses of aromatic polyketones and aromatic polyamide
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TLDR
In this paper, a high molecular weight aromatic polyamide was derived from the polyketone obtained through Schmidt reaction or Beckmann rearrangement, which was found to have some regularity in an arrangement of its repeating units.Abstract:
High molecular weight aromatic polyketones were prepared from p- and m-phenoxybenzoic acid in polyphosphoric acid by heating the reaction mixture at 100°C. High molecular weight aromatic polyamide was derived from the polyketone obtained through Schmidt reaction or Beckmann rearrangement. The polyamide obtained by Schmidt reaction was found to have some regularity in an arrangement of its repeating units. The thermal stability of the polyketone and the polyamide were good.read more
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Journal ArticleDOI
Synthesis and properties of polyaryletherketones
TL;DR: In this paper, Farnham et al. showed that copolytherketones and copolyaryletherketone-sulphones can be obtained by polycondensation of bis-4-halogenophenyl ketones with the potassium salt of 4-fluorophenyl 4-hydroxyphenyl ketone using certain diaryl sulphones as solvents for the reactions.
Journal ArticleDOI
On the molecular weight determination of a poly(aryl-ether-ether ketone) (PEEK)
TL;DR: In this paper, the second virial coefficient (A2) of five samples of poly(ether-ether-ketone) (PEEK) by light scattering (LS) in concentrated sulphuric acid was determined.
Journal ArticleDOI
The Synthesis and Properties of Poly(Aromatic Ketones)
M. J. Mullins,E. P. Woo +1 more
TL;DR: The first preparation of poly (aromatic ketones) (PAK) by aluminum chloride-catalyzed acylation of diphenyl ether with aromatic diacid chlorides was reported by Bonner as mentioned in this paper.
Journal ArticleDOI
Synthesis and Modification of Poly(ether ether ketone) and their Properties: A Review
TL;DR: In this article, a review of different synthetic and modification procedure, the characterization technique applied on PEEK, morphological and related properties are also described, considering the wide range of properties of PEEK polymers, a variety of structurally modified polymers are also reported.
Journal ArticleDOI
New polymer syntheses: II. Preparation of aromatic poly(ether ketone)s from silylated bisphenols
Hans R. Kricheldorf,Gerhard Bier +1 more
TL;DR: In this paper, bulk condensations of 4,4′-difluorobenzophenone and various silylated bisphenols were carried out at 220°-320°C, with caesium fluoride as catalyst.