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Synthesis and characterization of heterocyclic, and optically active poly(amide-imide)s by phosphorylation polycondensation

✍ Scribed by Abdol R. Hajipour; Saeed Zahmatkesh; Ahmad Banihashemi; Arnold E. Ruoho


Publisher
Springer
Year
2007
Tongue
English
Weight
481 KB
Volume
59
Category
Article
ISSN
0170-0839

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4,4'-(HexaΒ―uoroisopropylidene)-bis-(phthalic anhydride) (1) was reacted with L-leucine (2) in toluene solution at reΒ―uxing temperature in the presence of triethylamine and the resulting imideacid (4) was obtained in quantitative yield. The compound (4) was converted to the diacid chloride (5) by rea