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Optically active and organosoluble poly(amide-imide)s derived fromN,N′-(Pyromellitoyl)bis-l-histidine and various diamines: Synthesis and characterization

✍ Scribed by Khalil Faghihi; Meisam Shabanian; Mohsen Hajibeygi


Publisher
The Polymer Society of Korea
Year
2009
Tongue
English
Weight
462 KB
Volume
17
Category
Article
ISSN
1598-5032

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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,