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Synthesis and characterization of new optically active segmented poly(amide imide urethane)s based on different diacids via an isocyanate route

✍ Scribed by Shadpour Mallakpour; Marziyeh Khani; Fatemeh Rafiemanzelat


Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
219 KB
Volume
108
Category
Article
ISSN
0021-8995

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New optically active poly(amide-imide)s
✍ Khalil Faghihi 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 368 KB 👁 1 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,