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Novel Phosphorous-Containing Aromatic Polyethers – Synthesis and Characterization

✍ Scribed by Thorsten Hoffmann; Doris Pospiech; Liane Häußler; Hartmut Komber; Dieter Voigt; Christina Harnisch; Carsten Kollann; Michael Ciesielski; Manfred Döring; Raul Perez-Graterol; Jan Sandler; Volker Altstädt


Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
178 KB
Volume
206
Category
Article
ISSN
1022-1352

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✦ Synopsis


Abstract

Summary: The synthesis of novel phosphorous‐containing aromatic polyethers P‐PEEK and P‐PSU, based on poly(ether ether ketone)s (PEEK) and poly(ether sulfone)s (PSU) was carried out successfully by using phosphorous‐containing aromatic diols instead of bisphenol A in the usual synthesis procedure. The molecular weights of the P‐PEEKs and P‐PSUs obtained reflect both the influence of the different halogen components used and the lower thermal stabilities of the phosphorous‐containing diols compared to bisphenol A. However, polymers with sufficient molecular weights could be obtained, having interestingly high T~g~s, high thermal stabilities as well as modified flame retardance properties depending on the diol type incorporated.

Comparison of the molecular weights of the synthesized P‐polyethers.

magnified imageComparison of the molecular weights of the synthesized P‐polyethers.


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A highly fluorinated monomer, 1,3-bis(1,1,1,3,3,3-hexafluoro-2-pentafluorophenylmethoxy-2-propyl)benzene (12F-FBE), is obtained by reaction of the sodium salt of 1,3-bis(1,1,1,3,3,3-hexafluoro-2-hydroxy-2-propyl)benzene with pentafluorobenzyl bromide. 12F-FBE reacts with diphenols to give soluble, h