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Synthesis and characterization of new optically active and photolable poly (amide-imide)s fromN,N′-(3,3′,4,4′-benzophenonetetracarboxylic)-3,3′,4,4′-diimido-di-L-methionine and different diamines

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


Publisher
Springer
Year
2006
Tongue
English
Weight
496 KB
Volume
57
Category
Article
ISSN
0170-0839

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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,