Synthesis some of polymers and heterocyclic compounds via Bis (۴-aminophenyl) methane

Polymers and heterocyclic compounds according to their chemical character play important roles in many biological systems according to their functions as excipients and inert carriers of other pharmacological active compounds. This research we synthesis some of their compounds via Bis (۴-aminophenyl) methane. the first step react this compound with some substituted of benzaldehyde to form Schiff base (G۱-G۳) and cyclization of these Schiff base by sodium azid to form substituted of tetrazole (G۴-G۶) and polymerized this Schiff base by hydrazine hydrate to form ( G۷-G۹) compounds and the other step Bis (۴-aminophenyl) methane react with ammonium thiocyanate and glacial acidic acid and cyclized it to bis ۲-amino benzo thiazole methane (G۱۰) and reacted it with to terephthaloyl dichloride form polymer benzo bis thiazole methane amide derivative (G۱۲),and studying Thermogravimetric analysis (TGA) revealed varying thermal stability among the synthesized polymers. Polymer G۱۲ exhibited the highest thermal stability with ۸۳% residue at ۳۰۰ °C, attributed to its high aromatic content. In contrast, polymers G۲۲ and G۲۳ showed lower stability with residue values ranging from ۰–۴۲%, likely due to decreased aromatic and increased aliphatic content. Polymer G۲۴ demonstrated moderate stability (up to ۵۲%), highlighting the positive influence of aromatic structures on polymer thermal resistance.

کلیدواژه ها:

Polymers ، poly bis benzo thiazole methane amide ، ۴--aminophenyl ، TGA analysis