Home Page | New Literature   | Log in | Register  
logo
Paper: Patent:   

Aromatic Poly(Sulfone Sulfide Amide Imide)S As New Types Of Soluble Thermally Stable Polymers

Download
(178 KB)
Price: 25$
Abstract: A new diamine monomer containing flexible sulfone, sulfide, and amide units was prepared via three steps. Nucleophilic chloro displacement reaction of 4-aminothiophenol with 4-nitrobenzoyl chloride in the presence of propylene oxide afforded N-(4-mercapto-phenyl)-4-nitrobenzamide and subsequent reduction of the nitro intermediate led to 4-amino-N-(4-mercapto-phenyl)benzamide. Two moles of this amino thiophenol compound was reacted with bis-(4-chloro phenyl)sulfone to provide a novel diamine monomer. The diamine was reacted with aromatic dianhydrides to form. polyimides via a two-step polycondensation method, formation of poly(amic acid)s, followed by chemical imidization. The resulting polymers were characterized and their physical properties including thermal behavior, thermal stability, solubility and inherent viscosity were studied. Copyright © 2007 John Wiley & Sons, Ltd.
Year: 2007
Source: Polymers for Advanced Technologies
Volume-OnPage: Volume 18 Issue 4  292-298
Publication Date: April 2007
Keyword: synthesis;polyimides;polycondensation;high perform
Related Papers:

Related Patent:
Contact Us  |  Literature  |   Add Favorite     @ 2005-2014 ICP09006515-8
Email: 5032928@qq.com TEL:086 15918888768