Synthesis of aromatic polyesters by direct polycondensation with triphenylphosphine dichloride
โ Scribed by Kitayama, Shinichiro ;Sanui, Kohei ;Ogata, Naoya
- Publisher
- John Wiley and Sons
- Year
- 1984
- Weight
- 383 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0360-6376
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## Abstract Poly(chalcone)s were prepared by polycondensation of aromatic dialdehydes with aromatic diacetyl compounds in methanesulfonic acid (MSA) or phosphorus pentoxide/methanesulfonic acid (PPMA). Polycondensations proceed smoothly at room temperature and produced poly(chalcone)s with inherent
Two diimido-dicarboxylic acids, bis-4-[N-(4-carboxy phthalimido)phenyl]sulphone(I) and bis-4,4'-[N, N'-(4-carboxy phthalimido)]azobenzene(ll), were synthesized and aromatic polyamideimides were obtained from them by direct polycondensation with various aromatic diamines using triphenyl phosphite. Si