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Synthesis and ordered structure of amphipatic block copolymers with a saccharide and a peptide block

✍ Scribed by André Douy; Bernard Gallot

Publisher
Wiley (John Wiley & Sons)
Year
1980
Tongue
English
Weight
671 KB
Volume
19
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

Amphipatic block copolymers (OβEb) with a hydrophilic saccharide block and a hydrophobic polypeptide block were synthesized. In these copolymers the saccharide block is the glyco‐amino acid Oβ from ovomucoid and the peptide block (Eb) is a poly(γ‐benzyl‐L‐glutamate) block. Copolymers OβEb exhibit, in the solid state and in Me~2~SO concentrated solutions, mesomorphic lamellar structures where the polypeptide chains are in an α‐helical conformation. Depending on the molecular weight of the polypeptide block, three types of lamellar structures are obtained, and they differ by the mode of organization of the polypeptide chains in their lamellae and by the T or Y conformation of the saccharide block.

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