## Abstract A new diacetamido‐diamine monomer, __N__′‐[7‐(acetyl‐4‐aminoanilino)‐9,9‐dioctylflouren‐2‐yl]‐__N__′‐4‐aminophenyl) acetamide (ADOAc), with flourene‐based structure was prepared from the reaction of 4‐aminoacetanillide with 2,7‐dibromo‐9,9‐dioctylfluorene in the presence of 10 mol % CuI
Synthesis and characterization of novel optically transparent and organosoluble polyimides based on diamines containing cyclohexane moiety
✍ Scribed by Yijia Hou, Guofei Chen, Xueliang Pei, Xingzhong Fang
- Book ID
- 120741091
- Publisher
- Springer
- Year
- 2012
- Tongue
- English
- Weight
- 438 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1022-9760
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## Abstract A series of novel polyamides **3a**–**3d** containing 4‐__tert‐__butyltoluene moiety, were prepared using the phosphorylation polycondensation technique. FT‐IR and ^1^H NMR techniques were used to investigate the chemical structures of **3a–3d**. The results confirmed that they agreed w
Side-chain second-order nonlinear optical polyimides were prepared from four novel chromophore-containing diamines and 4,4Ј-(hexafluoroisopropylidene) diphthalic anhydride by a traditional two-step process that included a solution polycondensation followed by a chemical imidization. The four diamine