Synthesis and physical properties of soluble, amorphous poly(ether ketone)s containing the o-dibenzoylbenzene moiety

Poly(arylene ether)s and poly(arylene thioether)s containing the 1,2-dihydro-4-phenyl(2H)- phthalazinone moiety

“…Higher reaction temperatures are which is 7ЊC higher than that of polymer from undesired and should be avoided, because the thi-9,9-bis(4-hydroxyphenyl)fluorene and 28ЊC ophenoxide anion tended to react with sulfone higher than that of polymer from 4,4 -dihydroxygroup and high molecular weight polymers could biphenyl. 10 For polymers 6a-c, the T g decreases not be obtained at higher temperatures. The polyas the number of phenyl substituents decreases merization reaction proceeds by two different in the diketone monomers.…”

“…10,14 Copolymers between 2 and 5a would be expected to have very Monomer Synthesis high T g s. The syntheses of poly(arylene ether)s The synthesis of monomer 2 was first described in containing the 1,2-dihydro-4-phenyl(2H)phthalazi-1993, starting from phenolphthalein ( 1) in three none moiety are shown in Scheme 3. As expected, steps (Scheme 1).…”

“…10 These monomers form amord 6 as solvent. The chemical shifts of protons were calibrated with tetramethylsilane (TMS) and phous high-performance polymers by reacting with a variety of dihydroxy compounds.…”

Synthesis of highly fluorescent materials: Isoindole-containing polymers

“…The starting materials 1a-c, 1 2, 16 and 3 17 were prepared according to previously published procedures. Polymers 12a-f and 13a-f were prepared according to previously reported methods.…”

“…1 We became interested in transforming these polymers into the corresponding isoindole-containing polymers, which potentially could be very good fluorescent and electroluminescent materials. It is well documented that isoindoles are strongly fluorescent compounds 2 and the elegant synthesis of isoindoles by the reaction of phthalaldehyde and an amine in the presence of an alkylthiol has been used as the basis of a sensitive detection method for amines, such as amino acids, peptides, and proteins.…”