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Synthesis and characterization of new aromatic polyamides, polyimides, and polyureas containing 1,3,5‐triazine rings
Author(s) -
Lin JuiKun,
Yuki Yasuo,
Kunisada Hideo,
Kondo Shuji
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070401124
Subject(s) - pyromellitic dianhydride , polymer chemistry , dimethylacetamide , polyamide , thermal stability , polymer , thermogravimetric analysis , pyridine , glass transition , materials science , polyimide , dimethylformamide , triazine , condensation polymer , dicarboxylic acid , chemistry , organic chemistry , solvent , layer (electronics)
Novel aromatic polyamides, polyimides, and polyureas containing 1,3,5‐triazine rings were pre‐pared by the reaction of 2‐anilino‐4‐aminoanilino‐6‐aminophenyl‐1,3,5‐triazines with aromatic dicarboxylic acid chlorides, pyromellitic dianhydride, and diisocyantes, respectively. All polymers were soluble in polar aprotic solvents such as N,N ‐dimethylformamide, N,N ‐dimethylacetamide, dimethyl sulfoxide, and pyridine. The glass transition temperatures of polymers were in the range of 220–260°C. The thermal stabilities of polymers were evaluated by thermogravimetric analysis in air. These polymers were stable up to 420°C for polyamides, 470°C for polyimides, and 300°C for polyureas.