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Title
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Synthesis and characterization of organo-soluble polyamides containing triaryl imidazole pendant and ether linkage moieties: thermal, photophysical, and chemiluminescent properties
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Type
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JournalPaper
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Keywords
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fluorescent; polyamides; polycondensation; solubility; thermal properties
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Abstract
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A new symmetrical diamine monomer containing a triaryl imidazole pendant group was successfully synthesized by the nucleophilic substitution of hydroquinone with the synthesized 2-(2-chloro-5-nitrophenyl)-4, 5-diphenyl- 1H-imidazole (I). A series of novel polyamides were prepared from the diamine monomer and various aliphatic and aromatic dicarboxylic acids via phosphorylation polyamidation. These polyamides are readily soluble in many organic solvents; their inherent viscosities ranged from 0.68 to 0.89 dl/g and gave tough and flexible films by solution-casting. They had useful levels of thermal stability associated with relatively high Tgs (186–278-C), 10% weight loss temperatures in the range of 355–482-C, and char yields at 600-C in air up to 67%. All the polyamides have fluorescence emission in dilute (0.2 g/dl) DMAc solution with maxima at 425–495nm and with the quantum yields in the range 14–28%. The chemiluminescence activity of polyamides was also studied in the presence of peroxyoxalate
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Researchers
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Seyed Mojtaba Amininasab (Second Researcher), Mousa Ghaemy (First Researcher)
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