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Chain conformation of copoly(γ‐methyl D , L ‐glutamate)
Author(s) -
Musuda Yukio,
Miyazawa Tatsuo,
Goodman Murray
Publication year - 1969
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1969.360080408
Subject(s) - chemistry , optical rotatory dispersion , copolymer , amide , helix (gastropod) , absorption (acoustics) , crystallography , dispersion (optics) , infrared spectroscopy , absorption spectroscopy , spectral line , stereochemistry , polymer chemistry , circular dichroism , polymer , organic chemistry , physics , optics , ecology , astronomy , snail , biology
Copolymers of γ‐methyl D ‐ and L ‐glutamates with various D / L ratios were prepared. Infrared absorption spectra of solid films were measured and sums of right‐ and left‐handed helix contents were determined from intensities of amide V bands. Farultraviolet absorption spectra and optical rotatory dispersion of these copolymers in solutions are used to ascertain their helical character. Chain conformations of DL ‐copolypeptides are discussed.