Conformation study of poly(γ-methyl-L-glutamate) in helicogenic solvents by small-angle X-ray scattering
✍ Scribed by Yoshitaka Ishimuro; Saburo Yamaguchi; Fumiyuki Hamada; Akio Nakajima
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1981
- Tongue
- English
- Weight
- 484 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0006-3525
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✦ Synopsis
Abstract
Small‐angle x‐ray scattering of poly(γ‐methyl‐L‐glutamate), [Glu(OMe)]~n~, in m‐cresol and in pyridine was measured to determine the mass per unit length, M~q~, and the radius of gyration of the cross section, 〈S〉^1/2^. It was confirmed from the values of M~q~ that [Glu(OMe)]~n~ exists in an α‐helical conformation in these solvents. It was elucidated from the calculations on 〈S〉^1/2^ that the side chains come in moderately close contact with the main chain in these solvents. It was indicated from the analysis of the outer portion of the scattering curves that the side‐chain conformation varied depending on the solvent.