Journal Article10.1002/APP.20477
Film studies of certain new aromatic–aliphatic polyamides
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TL;DR: In this article, two new aromatic-aliphatic polyamides containing azo linkage in the main chain based on 2,2′-dimethyl-4,4′-diaminoazobenzene and adipic/2,chloro-5-methyl-1,2-dioic acid (α-chloroδ-methyl adipic acid) were synthesized and analyzed by thermogravimetry and films were cast.
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Abstract: Two new aromatic–aliphatic polyamides containing azo linkage in the main chain based on 2,2′-dimethyl-4,4′-diaminoazobenzene and adipic/2-chloro-5-methyl-1,2-dioic acid (α-chloro-δ-methyl adipic acid) were synthesized and analyzed by thermogravimetry and films were cast. Also three polymers obtained from condensation of 4,4′-azodibenzoic acid/adipic acid and 2,2′-bis [4-(p-amino phenoxy) phenyl] propane/4,4′-diaminoazobenzene were studied in terms of mechanical and morphological properties. Film studies were carried out interms of tensile property, scanning electron microscope, dielectric, microwave, and X-ray diffraction pattern. Thermal studies have been done using thermogravimetric analysis, differential thermal analysis, and pyrolysis-mass spectral data. The results were correlated with structure and orientation of the molecules. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 1305–1316, 2004
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Citations
Main-chain azo polyaramides with high thermal stability and liquid crystal properties
TL;DR: In this article, two main-chain aromatic polyamides containing azobenzene were synthesized by polycondensation of trans-azobenzenes-4,4′-dicarbonyl chloride with various aromatic diamines under low temperature.
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Investigation of physical properties and structure–property relationship in new poly(azo-sulfone-amide)s
TL;DR: A series of aromatic polyamides containing azo groups have been synthesized by the phosphorylation polycondensation of a new dicarboxylic acid (E)-1-(4-(3-carboxypyridylazo)thiocarbamoylaminophenyl-sulfonyl)phenyl) as discussed by the authors.
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Aromatic polyamides. V. Substituent effect on thermal properties
Y. P. Khanna,Eli M. Pearce +1 more
TL;DR: In this paper, the effect of electron-withdrawing substituents such as chloro and nitro in increasing the thermo-oxidative resistance of the polyamides is pointed out.
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Thermal behavior and fiber studies of certain azoaromatic polyamides
V. Rajendran,Moola Joghee Nanjan +1 more
TL;DR: In this paper, two polyamides obtenus par reaction du dimethyl-2,2' diamino-4,4' azobenzene avec le chlorure de terephtaloyle and le chlorures d'azodibenzoyle-4.4'.
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