Synthesis of poly arylene ether

GENERAL APPROACHES FOR THE SYNTHESIS OF POLY(ARYLENE ETHER)S 329... 

The general approaches for the synthesis of poly(arylene ether)s include electrophilic aromatic substitution, nucleophilic aromatic substitution, and metal-catalyzed coupling reactions. Poly(arylene ether sulfone)s and poly(arylene ether ketone)s have quite similar structures and properties, and the synthesis approaches are quite similar in many respects. However, most of the poly(arylene ether sul-fone)s are amorphous while some of the poly(arylene ether)s are semicrystalline, which requires different reaction conditions and approaches to the synthesis of these two polymer families in many cases. In the following sections, the methods for the synthesis of these two families will be reviewed. 

Scheme 6.9 Synthesis of poly(arylene ether ether ketone) (PEEK) and poly(ether ether ketone ether ketone (PEEKEK) in triflic acid.

Scheme 6.12 Proposed mechanism for the synthesis of poly(arylene ether sulfone) via the potassium carbonate process.8...

Scheme 6.13 Synthesis of poly(arylene ether sulfone)s via silyl ether displacement.

The nucleophilic aromatic substitution reaction for the synthesis of poly(arylene ether ketone)s is similar to that of polysulfone, involving aromatic dihalides and aromatic diphenolates. Since carbonyl is a weaker electron-withdrawing group titan sulfonyl, in most cases, difluorides need to be used to afford high-molecular-weight polymers. Typically potassium carbonate is used as a base to avoid the... 

Other Approaches for the Synthesis of Poly(arylene ethers)s... 

Yang, Y. S., Shi, Z. Q. and Holdcroft, S. 2004. Synthesis of poly[arylene ether sulfone-b-vinylidene fluoride] block copolymers. European Polymer Journal 40 531-541. 

Figure 40. Synthesis of poly(arylene ether)s bearing phosphonic acid groups. ...

Wang, S. McGrath, J. E. Synthesis of Poly(arylene ether)s. 

Synthesis of Poly(arylene Ether Sulfone) from Bisphenol A and 4,4 - Dichlorodiphenyl Sulfone... 

The synthesis of poly(arylene ether sulfone)s with other bisphenols, e.g., 4,4-bis(4-hy-droxyphenyl)pentanoic acid, can be carried out in a similar way. 

In analogy to poly(arylene ether sulfone)s, there are two different polycondensation methods for the technical synthesis of poly(arylene ether ke-tone)s ... 

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