Four samples of copolymeix of -&enzyl bgliitamic (BLG) and 0-benzyl-L-wrine (BLS) were syntheriized by changing the mixing ratio of two monomer anhydrides. The conformations of these copolymers in CHCb, containing very small amount of dichloroacetic acid (DCA) necessary to dissolve the sample, were
Chain conformation of copoly(γ-methyl D, L-glutamate)
✍ Scribed by Yukio Musuda; Tatsuo Miyazawa; Murray Goodman
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1969
- Tongue
- English
- Weight
- 285 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0006-3525
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✦ Synopsis
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 rotatory dispersion of these copolymers ill solutions are used to ascertain their helical character. Chain conformations of DL- copolypeptides are discussed.
📜 SIMILAR VOLUMES
## Abstract Molecular chain conformations of poly‐γ‐methyl‐L‐glutamate, poly‐γ‐methyl‐D‐glutamate, and poly‐γ‐methyl‐D,L‐glutamate in membranes prepared by using mainly trifluoroacetic acid and formic acid as solvents were investigated by infrared, X‐ray diffraction, and optical rotatory dispersion
COMMUNICATIONS TO THE EDITOR Conformations of Protected Oligo(y -methyl-L-glutamates) at the Air-Water Interface ## Synopsis In a previous paper dealing with the synthesis and the conformational behavior of a series of oligo(y-methyl-L-glutamates), it was shown that an organized conformation app
## 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