Synthesis and characterization of novel aromatic poly(amide–imide)s with alternate (amide–amide) and (imide–imide) sequences
✍ Scribed by A.V. Rami Reddy; P. Sreenivasulu Reddy; P.S. Anand
- Book ID
- 108318616
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 235 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0014-3057
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📜 SIMILAR VOLUMES
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.
4,4'-(Hexa¯uoroisopropylidene)-bis-(phthalic anhydride) (1) was reacted with L-leucine (2) in toluene solution at re¯uxing temperature in the presence of triethylamine and the resulting imideacid (4) was obtained in quantitative yield. The compound (4) was converted to the diacid chloride (5) by rea
A series of novel benzhydrol-containing poly(amide-imide)s (PAIs) have been prepared from a new diimide-dicarboxylic acid, N,N'-bis(4-hydroxycarbonyl)-benzhydrol-3,3',4,4'-tetracarboxydiimide (BHTDA-DIA), with various diamines by direct polycondensation using triphenyl phosphite and pyridine as cond