SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN*

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SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN*

Papers | Updated：2021-06-21

- SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN*
- Vol. 20, Issue 3, Pages: 219-224(2002)
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- Published：20 June 2002
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SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN*[J]. 2002, 20(3): 219-224.
DOI：

SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIDE CONTAINING ORDERED 1,2,4-TRIAZINE IN THE MAIN CHAIN*[J]. 2002, 20(3): 219-224. DOI：

摘要

A new heat-resistant

soluble polymer

poly(phenyl-1

4-triazine imide)

has been prepared via a two-step methodof polycondensation of N

N'-bis(4-benzil)pyromellitimide and terephthalamidrazone in cresol

followed by curing at highertemperature. The rigid 1

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%.

Abstract

A new heat-resistant

soluble polymer

poly(phenyl-1

4-triazine imide)

has been prepared via a two-step methodof polycondensation of N

N'-bis(4-benzil)pyromellitimide and terephthalamidrazone in cresol

followed by curing at highertemperature. The rigid 1

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

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