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- W3145268498 abstract "A new heat-resistant, soluble polymer, poly(phenyl-1,2,4-triazine imidc), has been prepared via a two-step method of polycondensation of N,N'-bis(4-benzil)pyromellitimide and terephthalamidrazone in cresol, followed by curing at higher temperature. The rigid 1,2,4-triazine group increases the solubility of the polyimide so that the polymer is soluble in cresol,N-methyl-2-pyrrolidone (NMP), trifluoroacetic acid and concentrated sulfuric acid, etc. Thermogravimetric analysis (TGA)indicates that this novel polyimide has good thermal stability with a high decomposition temperature of 447℃ in air and of 423 ℃ in N2. It has a tensile strength of 107.4 MPa with an elongation at break of around 7.6%." @default.
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- W3145268498 date "2002-01-01" @default.
- W3145268498 modified "2023-09-26" @default.
- W3145268498 title "SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN" @default.
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