## Abstract A new monomer, __N,N′‐__bis(4‐phenoxybenzoyl)‐__m__‐phenylenediamine (BPPD), was prepared by condensation of __m__‐phenylenediamine with 4‐phenoxybenzoyl chloride in __N,N__‐dimethylacetamide (DMAc). A series of novel poly(ether amide ether ketone) (PEAEK)/poly(ether ketone ketone) (PEK
Synthesis of cyclic precursors of poly(ether ether ketone)
✍ Scribed by Yinghua Qi; Tianlu Chen; Jiping Xu
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 59 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0170-0839
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Republic of China ## SYNOPSIS Poly(ether ether ketone ketone)-poly(ether sulfone) (PEEKK/PES) block copolymers were prepared from the corresponding oligomers via a nucleophilic aromatic substitution reaction, and the A?" of the PEEKK segment was fixed a t 12,000, while the M,,'s of the PES segmen
## Abstract 2,6‐Bis(β‐naphthoxy)benzonitrile (BNOBN) was synthesized by reaction of β‐naphthol with 2,6‐difluorobenzonitrile in __N__‐methyl‐2‐pyrrolidone (NMP) in the presence of KOH and K~2~CO~3~. Poly(ether ketone ether ketone ketone)(PEKEKK) /poly(ether ether ketone ketone) (PEEKK) copolymers c
## Abstract Thermal properties of poly(ether ether ketone ketone) (PEEKK)/poly(ether biphenyl ether ketone ketone) (PEDEKK) copolymers were investigated by means of differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The glass transition temperature (__T__~g~) increases fr