Synthesis and Properties of Novel Poly(amine ether)s

Abstract

Using aromatic bis(4-bromophenyl) ether and various aromatic diamines as the monomers, a series of novel poly(amine ether)s (PAEs) have been synthesized via palladium-catalyzed aryl amination, which is the Hartwig-Buchwald polycondensation reaction. Their structures were characterized by means of elemental analysis, FT-IR, 1 H NMR and UV-Vis spectroscopy. The results show a good agreement with the proposed structures. Their general properties were studied by DSC and TG, and it's obvious that they show high glass transition temperatures (T g ＞200 ℃), good thermal stability with high decomposition temperatures (T D ＞500 ℃) and excellent solubility. The mechanical behavior of these polymers suggested that they could be considered a new class of high-performance polymers.

Synthesis of Soluble Fluorene‐polyimino Ketone

“…The properties of the PIK polymers suggest that they are promising candidates for high-performance polymers. [1][2][3] The structures of the PIK show that they can be considered a hybrid structure of poly(arylene ether ketone)s, polyaramides, and polyaniline. Besides, they show outstanding solubility compared with other high-performance polymers.…”

Synthesis and Photosensitive Properties of Poly(aryl imino) Containing Azobenzene Group (PAI‐A)

“…6 In 2004, aromatic poly(imino ketone)s (PIK) as new high-performance polymers were reported by Müllen. 7 Then, Chang et al 8,9 expanded the scope of poly(imino ketone)s in 2007, and a series of poly(arylene imino)s (PAI) were synthesized. In order to functionalize the PAIs, here we want to introduce azobenzene as the functional group into the polymer chain.…”

Synthesis, Structure and Properties of Poly(arylene imino)s

“…[18][19][20][21][22][23] The Pd-catalyzed arylene amination has also been applied to polycondensation reactions to give various polyiminos and poly(imino ketone)s with no or scarcely cross-linked structures (Scheme 2). [24][25][26] But most of the polymers show low molecular weights and high polydispersity indices which seriously limit their procScheme 1 Synthesis of compounds with NH groups via palladium-catalyzed amination Scheme 2 Synthesis of polymers with NH groups via palladium-catalyzed amination essability. The accepted mechanism for the Pd-catalyzed amination involves oxidative addition of the aromatic halides to a palladium(0) species to form an aryl-palladium(II) halide.…”