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Epitaxial crystallization of poly (γ-benzyl L-glutamate) on alkali halide single crystals

✍ Scribed by S. H. Carr; A. G. Walton; Eric Baer

Publisher
Wiley (John Wiley & Sons)
Year
1968
Tongue
English
Weight
605 KB
Volume
6
Category
Article
ISSN
0006-3525

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✦ Synopsis

Single crystals of poly(γ-benzyl L-glutamate) were formed by epitaxial crystallization from solution in mesitylene on NaCl, KI, and KCl (001) cleavage faces. From electron microscopy and diffraction studies, the structure of these overgrowths was determined to be that of lamellae containing chain-folded α-helical macromolecules. The usual type of crystal perfection, that of ordered helix axes and disordered side groups, was exhibited by this synthetic polypeptide. Unique orientation regimes were observed with each substrate.

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