## Synopsis Copolymers of 7-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 lefthanded helix contents were determined from intensities of amide V bands. Farultraviolet absorption spectra and optical rot
Infrared spectra and molecular conformations of D,L-copoly-γ-benzylglutamates
✍ Scribed by Masamichi Tsuboi; Yukio Mitsui; Akiyoshi Wada; Tatsuo Miyazawa; Nobuya Nagashima
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1963
- Tongue
- English
- Weight
- 971 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0006-3525
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## Abstract The ir spectra of σ–nitrophenylthio‐tetra‐ and hexa‐γ‐benzyl‐L‐glutamate ethylamides were measured at different concentrations in chloroform and ethylene dichloride. The molar extinction coefficients of two bands, each for the amide I and A modes, were observed as indicating the content
## Abstract The D and L copolymerizations of γ‐benzyl glutamate N‐carboxylic anhydride (NCA) were carried out by two different initiators, __n__‐butylamine and sodium methoxide. The stereoregularity of the polymer was examined by infrared spectroscopy in the region 700–200 cm^−1^. A remarkable diff