Citation: Qian Qian Bu, Shu Jiang Zhang, Hui Li, Yan Feng Li. Novel organosoluble polyimide based on an asymmetric bis(ether amine):3, 4'-Bis(4-aminophenoxy)-benzophenone[J]. Chinese Chemical Letters, ;2012, 23(1): 121-122. doi: 10.1016/j.cclet.2011.09.014 shu

Novel organosoluble polyimide based on an asymmetric bis(ether amine):3, 4'-Bis(4-aminophenoxy)-benzophenone

State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, China

Received Date: 5 May 2011

Fund Project: The authors acknowledge the financial support from the Natural Science Foundation of Gansu Province (No. 096RJZA047) and the Fundamental Research Funds for the Central Universities (No. lzujbky-2011-24).

A new kind of asymmetrical ether diamine, 3, 4'-bis(4-aminophenoxy)benzophenone (BABP), was synthesized from the nucleophilic substitution reaction of 4-chloronitrobenzene and 3, 4'-dihydroxybenzophenone in the presence of potassium carbonate, followed by catalytic reduction with SnCl2·6H₂O and concentrated hydrochloric acid. The prepared diamine was employed in the preparation of a novel polyimide containing asymmetrical diaryl ether segments via the polycondensation of it with BTDA by a two-step method. The resulting polyimide exhibits excellent solubility, film-forming capability and high thermal resistance.
- Asymmetrical diamine,
- Ether diamine,
- Organosoluble polyimide
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