R6sum~-Des oligom6res du poly[4-4'(p-biph6nyl6ne) amide] ont +t6 synth+tisds, dans une cellule fi compartiment unique, par r6duction 6lectrochimique du 4-4'dibromo[(p-biph6nyl6ne) amide] en pr6sence d'une faible quantit6 de NiBr~ bipyridine. Les 6chantillons, caract6ris6s par spectroscopie i.r., ren
Preparation and properties of poly-[4-4′-(p-biphenylene)amide]
✍ Scribed by G. Zappia; G. Tosi; L. Cardellini; F. Sandrolini
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 210 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0390-6035
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✦ Synopsis
amide] was prepared by polycondensation of 4-amino-4'-carboxyl-biphenyl at 260-270°C in a nitrogen atmosphere. The thermal behaviour of the polyamide and the weight loss of the monomer, during the reaction of polycondensation, were investigated by Differential Thermal Analysis (DTA) and by Thermalgravimetric Analysis (TGA). Infrared spectrum and intrinsic viscosity of the polyamide were also studied.
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## Abstract An imide ring‐containing dicarboxylic acid, 3,3‐bis[4‐(4‐trimellitimidophenoxy)phenyl]‐1‐oxoisoindoline, was prepared via condensation of 3,3‐bis[4‐(4‐aminophenoxy)phenyl]‐1‐oxoisoindoline and trimellitic anhydride. A series of new aromatic bis(phenoxy)‐1‐oxo‐isoindoline‐containing poly
## SYNOPSIS A series of novel bis(phen0xy)phthalimidine-containing poly(amide-imide)s I11 were synthesized by the direct polycondensation of 3,3-bis[4-(4-aminophenoxy)phenyl]phthalimi&ne (BAPP) with various aromatic bis(trimel1itimide)s in N-methyl-2-pyrrolidone (NMP) using triphenyl phosphite and
## Abstract A series of novel bis(phenoxy)phthalide‐containing poly(amide‐imide)s 3 were synthesized via direct polycondensation of 3,3‐bis[4‐(4‐aminophenoxy)phenyl]phthalide (BAPP) with various aromatic bis(trimellitimide)s 2 in __N__‐methyl‐2‐pyrrolidone (NMP) using triphenyl phosphite and pyridi
A diimide dicarboxylic acid, 1,4-bis(4-trimellitimidophenoxy)naphthalene (1,4-BTMPN), was prepared by condensation of 1,4-bis(4-aminophenoxy)naphthalene and trimellitic anhydride at a 1 : 2 molar ratio. A series of novel poly(amide-imide)s (IIa-k) with inherent viscosities of 0.72 to 1.59 dL/g were