Synthesis and characterization of poly(amide imides) containing benzimidazole-rings
β Scribed by Im Sik Chung; Sang Youl Kim
- Publisher
- Springer
- Year
- 1997
- Tongue
- English
- Weight
- 437 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0170-0839
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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
A series of novel soluble poly(amide-imide)s were prepared from the diimide-dicarboxylic acid, 2,2-bis[N-(4-carboxyphenyl)-phthalimidyl]hexafluoropropane, with various diamines by the direct polycondensation in N-methyl-2-pyrrolidinone containing CaCl 2 using triphenyl phosphite and pyridine as cond
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.