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Thermally stable and organo-soluble polyamides containing triazine rings and ether linkages in the main chain: Synthesis and characterization

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Abstract

In order to synthesize new polyamide (PA) 5 and copolyamides (CoPA) 7a-7d, a new-type of dicarboxylic acid containing triazine ring was successfully synthesized from 2,4-dichloro-6-methoxy-s-triazine 1 and 4-aminobenzoic acid. New polyamide 5 containing triazine moiety was prepared from 4,4′-(6-methoxy-1,3,5-triazine-2,4-diyl)bis(azanediyl)dibenzoic acid 3 and 4,4′-diaminodiphenylether by direct polycondensation reaction. Then new series thermally stable copolyamides 7a-7d with high solubility in common organic solvents were synthesized from the direct polycondensation reaction of diacid 3 as a first monomer, aliphatic-aromatic diacids 6a-6d as second diacids and 4,4′-diaminodiphenylether. All of the above polymers were fully characterized by 1H-NMR and FTIR spectroscopy, elemental analysis (CHN), inherent viscosity, solubility tests, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The resulted CoPAs 7a-7d have shown good inherent viscosities, solubility and thermal properties.

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Correspondence to Mohsen Hajibeygi.

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Hajibeygi, M., Faghihi, K., Khodaei-Tehrani, M. et al. Thermally stable and organo-soluble polyamides containing triazine rings and ether linkages in the main chain: Synthesis and characterization. Chin J Polym Sci 33, 109–117 (2015). https://doi.org/10.1007/s10118-015-1562-x

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  • DOI: https://doi.org/10.1007/s10118-015-1562-x

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