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Synthesis and Characterization of Chiral Poly(Amide-Imide) Containing L-Alanine

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Abstract:

A novel chiral poly(amide imide) containing L-alanine was synthesized by direct polycondensation reaction of newly synthesized N,N’-(4,4’-diphthaloyl)-bis-L-alanine diacid with 4,4’-diaminodiphenyl ether in a medium consisting of N-methyl-2-pyrrolidone (NMP), triphenylphosphite (TPP), calcium chloride (CaCl2), and pyridine. The new chiral diimide-diacid monomer was synthesized by direct reaction of 3,3’-4,4’-Biphenyl tetracarboxylic acid dianhydride with L-alanine in acetic acid under refluxing conditions. The resulting compounds were obtained in quantitative yields and high purity. The synthetic diacid monomer was characterized by elemental analysis, 1H-NMR spectroscopy, FT-IR techniques and specific rotation, the obtained polymer was characterized by FTIR techniques, specific rotation and solubility testing.

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Periodical:

Advanced Materials Research (Volumes 282-283)

Pages:

116-119

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.282-283.116

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Online since:

July 2011

Authors:

Zhi Yong Yang, Jin Shui Yao, Rui Bao Guo

Keywords:

Chiral, L-Alanine, Poly(Amide Imide), Synthesis

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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