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Soluble New Optically Active Poly(amide–imide)s Derived from Photosensitive 4,4′-Diaminochalcone and ChiralN,N′-(Pyromellitoyl)-bis-l-Amino Acids: Synthesis and Characterization

✍ Scribed by Hassan Moghanian, Sattar Ebrahimi…


Book ID
120722490
Publisher
Springer-Verlag
Year
2012
Tongue
English
Weight
914 KB
Volume
38
Category
Article
ISSN
1319-8025

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New optically active poly(amide-imide)s
✍ Khalil Faghihi 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 368 KB 👁 2 views

## Abstract Five new poly(amide‐imide)s **8a–e** were synthesized through the direct polycondensation reaction of five chiral __N__,__N__′‐(pyromellitoyl)‐bis‐L‐amino acids **3a–e** with 1,3‐bis(4‐aminophenoxy) propane **7** in a medium consisting of __N__‐methyl‐2‐pyrrolidone, triphenyl phosfite,