Two chalcone-derivative isomers, 4,4-diaminochalcone ( 4DAC ) and 3,3diaminochalcone ( 3DAC ), were synthesized and used as monomers together with tetracarboxylic dianhydrides to prepare novel photosensitive polyimides that contain a chalcone moiety in the main chain. The polyimides were characteriz
Synthesis and properties of novel aromatic copolyamides containing chloro-substituted phthalazinone moiety in the main chain
β Scribed by Pengtao Liu; Cheng Liu; Xigao Jian
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 242 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Six new polyamides **8aβf** containing __p__βphenylenediacryloyl moieties in the main chain were prepared by the direct polycondensation reaction of bis(__p__βamidobenzoic acid)β__p__βphenylene diacrylic acid **6** with 1,4βdiphenylene diamine **7a**, 1,3βdiamino toluene **7b**, 1,5βdia
This work synthesized a series of new polyamides by direct polycondensation of 1,3-bis[4-(4-carboxyphenoxy)phenyl]adamantane ( I) with various diamines. The diacid I was synthesized from 1,3-bis(4-hydroxyphenyl)adamantane in two steps. Polyamides III were soluble in N-methyl-2-pyrrolidone (NMP), N,N