Synthesis and Properties of Novel Fluorinated Polyamides Based on Noncoplanar Sulfoxide Containing Aromatic Bis(ether amine)
β Scribed by Shockravi, Abbas; Abouzari-Lotf, Ebrahim; Javadi, Ali; Taheri, Salman
- Book ID
- 111777204
- Publisher
- Nature Publishing Group
- Year
- 2009
- Tongue
- English
- Weight
- 239 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0032-3896
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## Abstract High molarβmass aromatic polyamides were obtained from 7,7'βbis(4βcarboxyphenoxy)β4,4,4β²,4β²βtetramethylβ2,2β²βspirobichroman, a novel dicarboxylic acid monomer, by direct polycondensation reaction in __N__βmethylβ2βpyrrolidone (NMP) with various aromatic diamines, using triphenyl phosphi
The five benzene rings-containing (hereafter referred to as "five-ring") dicarboxylic acids a,a'-bis [4-(4-carboxyphenoxy)phenyl] -1,4-diisopropylbenzene (p-111) and a,a'-bis [ 4-(4carboxyphenoxy)phenyl] -1,3-diisopropylbenzene (n-111) were prepared by the fluoro-displacement of a,a'-bis(4-hydroxyph