A 30‐membered macrocyclic arylene ether ketone monomer for poly(ether ether ketone) was synthesized by a two‐step method. The first step involves synthesis of a long bisphenol from hydroquinone and 4,4′‐difluorobenzophenone. The second step is the cyclization of the bisphenol with 4,4′‐difluorobenzophenone. The pure macrocycle was isolated and characterized by IR, NMR, MS, TGA and DSC techniques. The X‐ray structure of the macrocycle was also determined.
No takes yet. Share an insight, caveat, or question.
Chen et al. (1996) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: