A series of chiral copoly(ester-imide)s was prepared by polycondensation of N-(Ccarboxy-pheny1)trimellitimide with mixtures of isosorbide and phenylhydroquinone. All copolyesters are non-crystalline. They form a cholesteric melt, when containing more than 50 mol-% of phenylhydroquinone. Containing 5
✦ LIBER ✦
New polymer syntheses: 34. Copoly(ester imide)s of 4-hydroxybenzoic acid and N-(4-carboxyphenyl)-4-hydroxyphthalimide
✍ Scribed by Hans R. Kricheldorf; Gert Schwarz; W. Nowatzky
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 493 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0032-3861
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## Abstract A series of novel bis(phenoxy)‐1‐oxoisoindoline‐containing poly(amide‐imide)s 3 were synthesized by the direct polycondensations of __N__‐phenyl‐3,3‐bis[4‐(4‐aminophenoxy)‐phenyl]‐1‐oxoisoindoline (1m, NPBA) with various aromatic bis(trimellitimide)s 2 in __N__‐methyl‐2‐pyrrolidone (NMP