Branched poly(arylene ether ketone)s with tailored thermal properties: Effects of AB/AB2 ratio, core (B3) percentage, and reaction temperature

A novel fluoro-terminated hyperbranched poly(phenylene oxide) (FHPPO): synthesis, characterization, and application in low-k epoxy materials

“…4 Recently, several hyperbranched poly(arylene ether)s have been reported, including poly(ether sulfone), [13][14][15][16] poly(ether ketone), [17][18][19][20][21] and poly(arylene ether phosphine oxide)s). [22][23][24][25][26] The monomers used to prepare these hyperbranched polymers contain electron-withdrawing groups, i.e., in ortho and para positions of the leaving groups, which can serve as the activating groups and are favourable for aromatic nucleophilic substitution (S N Ar) reactions. However, only a handful of research has reported on the synthesis of hyperbranched poly(phenyl oxide) (HPPO) via S N Ar reactions because the monomers used for preparing HPPO lack the necessary activating groups as mentioned above, which greatly limit the applications of HPPOs.…”

Aromatic Hyperbranched Polymers: Synthesis and Application

“…2 The combined effects of reaction temperature, the ratio of AB to AB 2 , and the mol% of the core molecule on the final polydispersity (PDI) of hb-PEK copolymers. Reproduced with permission from [169] A. Ghosh et al Hyperbranched Poly(aryl ether) with a Keto-imide Moiety Baek et al [131] synthesized an AB 2 monomer containing a preformed aromatic imide moiety and para-carbonyl functions to facilitate the formation of phenolate nucleophiles using K 2 CO 3 as base.…”