Poly(ether sulfone) and poly(ether sulfone ketone) copolymers (I-V) were synthesized by the nucleophilic substitution reaction of 4,4ะ-dihydroxy diphenyl sulfone (DHDPS, A) with various mole proportions 4,4ะ-difluoro benzophenone (DFBP, B) and 4,4ะ-difluoro diphenyl sulfone (DFDPS, C) using sulfolan
Synthesis and Characterization of Poly(aryl ether sulfone) PolyHIPE Materials
โ Scribed by Cameron, Neil R.; Sherrington, David C.
- Book ID
- 126159618
- Publisher
- American Chemical Society
- Year
- 1997
- Tongue
- English
- Weight
- 347 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0024-9297
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## Abstract A series of controlled molecular weight poly(aryl ether sulfone) oligomers with benzophenone moieties at the chain termini were prepared. The two carbonyl groups at the chain ends were converted to ethynyl groups by using trimethylsilyldiazomethane/BuLi in tetrahydrofuran. Reactions of
## Abstract New poly(aryl ether ketone) and poly(aryl ether sulfone) monodisperse model oligomers were synthesized in good yield via nucleophilic reactions. They were characterized by means of ^1^H and ^13^C NMR spectroscopy, and all chemical shifts were assigned to the corresponding nuclei. Both p
Poly(ether sulfone) copolymers I-V were synthesized by the nucleophilic substitution reaction of 4,4-dichlorodiphenyl sulfone with varying mole proportions of 4,4-isopropylidene diphenol (bisphenol A) and 4,4-dihydroxydiphenyl sulfone (bisphenol S) using sulfolane as the solvent in the presence of a