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Synthesis of Organosoluble and Optically Active Poly(ester-imide)s by Direct Polycondensation with Tosyl Chloride in Pyridine and Dimethylformamide

✍ Scribed by Shadpour Mallakpour; Elaheh Kowsari


Publisher
Springer
Year
2005
Tongue
English
Weight
694 KB
Volume
55
Category
Article
ISSN
0170-0839

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Synthesis of novel optically active poly
✍ Shadpour Mallakpour; Elaheh Kowsari 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 2 views

## Abstract 4,4′‐Hexafluoroisopropylidene‐2,2‐bis(phthalic acid anhydride) (1) was treated with L‐methionine (2) in acetic acid and the resulting 4,4′‐(hexafluoroisopropylidene)‐__N,N__′‐bis(phthaloyl‐L‐methionine) diacid (4) was obtained in high yields. The direct polycondensation reaction of this