Synthesis and Properties of Polyamides, Polyimides, and a Polyamide-Imide Based on Trimethylene Glycol-Di-p-Aminobenzoate
✍ Scribed by Patil, D. R.
- Book ID
- 115472937
- Publisher
- Informa UK (Taylor & Francis)
- Year
- 1990
- Tongue
- English
- Weight
- 234 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-233X
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## Abstract A novel diamine, 7,7′‐bis(4‐aminophenoxy)‐4,4,4′,4′‐tetramethyl‐2,2′‐spirobichroman (3), was synthesized and used as a monomer with various aromatic tetracarboxylic dianhydrides, dicarboxylic acids and imide ring‐containing dicarboxylic acids, to synthesize polymides, polyamides and pol
## Abstract High molar‐mass aromatic polyamides were obtained from 7,7'‐bis(4‐carboxyphenoxy)‐4,4,4′,4′‐tetramethyl‐2,2′‐spirobichroman, a novel dicarboxylic acid monomer, by direct polycondensation reaction in __N__‐methyl‐2‐pyrrolidone (NMP) with various aromatic diamines, using triphenyl phosphi