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New functional polyamides derived from citric acid and L‐lysine: Synthesis and characterization
Author(s) -
Boustta Mahfoud,
Huguet Jovanka,
Vert Michel
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910470130
Subject(s) - polyamide , imide , chemistry , citric acid , polymerization , polymer chemistry , hydrolysis , lysine , carboxylic acid , chloride , organic chemistry , amino acid , polymer , biochemistry
New functional aliphatic polyamides bearing pendant carboxylic acid and tertiary alcohol groups have been synthesized by step‐growth polymerization of protected citric acid in the diacyl chloride activated form and protected L‐lysine using the interfacial method. It has been found that a secondary reaction occurs during polymerization and leads to the formation of intramolecular imide cycles. Cleavage of protecting groups and partial or total hydrolysis of imide functions were carried out stepwisely. Resulting structural changes are discussed on the basis of IR and 13 C NMR data.