Synthesis and characterization of poly benzoylpropionamides
TL;DR: In this paper, linear polyamides having viscosities in the range of 0.12-0.41 dl/g have been prepared from bisbenzoyl propionic acids and aromatic diamines by low temperature solution polycondensation in 80-85% yield.
About: This article is published in European Polymer Journal.The article was published on 1982-01-01. It has received 1 citations till now. The article focuses on the topics: Condensation polymer.
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TL;DR: In this paper, several new aromatic-aliphatic cardopolyamides containing phenoxathiin and thianthrene derivatives were prepared by the direct polycondensation of 2,8-phenoxathyin-bis(γ-ketobutyric acid) (PA) or 2,7-thian-threne-bis (γ-ketabolitioned) (TA) with 3,3-bis-4-aminophenyl phthalide (PDA), 9,9-bis-(4-amino-phthalide)
Abstract: Several new aromatic-aliphatic cardopolyamides containing phenoxathiin and thianthrene derivatives were prepared by the direct polycondensation of 2,8-phenoxathiin-bis(γ-ketobutyric acid) (PA) or 2,7-thianthrene-bis(γ-ketobutyric acid) (TA) with 3,3-bis(4-aminophenyl phthalide) (PDA), 9,9-bis(4-aminophenyl fluorene (FDA), or 9,9-bis(4-aminophenyl) anthrone (ADA) in a triphenyl phosphite-pyridine system. The cardopolyamides were obtained in 80–95% yield and possessed viscosities in the range 0.90-1.35 dl/g. They showed better solubility and heat resistance than analogous noncardopolyamides derived from conventional diamines. All the polymers were characterised by IR spectra, density, solubility, crystallinity and thermal analysis. Integral procedural decomposition temperatures (IPDT) were calculated from the primary thermograms in the temperature range 100–650°C to give quantitative data regarding the thermal stabilities. The molecular weight and molecular weight distribution of the polyamides were determined by gel-permeation chromatography (GPC).
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