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Synthesis and characterization of novel poly(amide imide)s

✍ Scribed by Helmut Reinecke; José G. De La Campa; Javier De Abajo

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
422 KB
Volume
61
Category
Article
ISSN
0021-8995

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✦ Synopsis

Novel poly(amide imide)s having inherent viscosities in the range 0.89-1.56 dL/g were prepared by the method of low temperature polycondensation in solution of N,N-dimethylacetamide (DMA) from aromatic diamines and a new monomer: N-[4"-(chloroformylphenyl) -4'-iminobenzoyl] trimellitimide chloride. The polymers were soluble in polar aprotic solvents and essentially amorphous. They showed glass transition temperatures in the range 310-350°C and decomposition temperatures of 450-460°C. Polymer films, fabricated by casting polymer solutions in DMA, showed tensile strengths in the range 70-90 MPa and moduli values between 3000-4000 MPa.

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